21354029970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{65731}}^1$

素因数の和:65785

約数の個数: 192

約数和(自身を含む): 67980560256

約数和(自身を除く): 46626530286

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 17, 21, 26, 30, 34, 35, 39, 42, 49, 51, 65, 70, 78, 85, 91, 98, 102, 105, 119, 130, 147, 170, 182, 195, 210, 221, 238, 245, 255, 273, 294, 357, 390, 442, 455, 490, 510, 546, 595, 637, 663, 714, 735, 833, 910, 1105, 1190, 1274, 1326, 1365, 1470, 1547, 1666, 1785, 1911, 2210, 2499, 2730, 3094, 3185, 3315, 3570, 3822, 4165, 4641, 4998, 6370, 6630, 7735, 8330, 9282, 9555, 10829, 12495, 15470, 19110, 21658, 23205, 24990, 32487, 46410, 54145, 64974, 65731, 108290, 131462, 162435, 197193, 324870, 328655, 394386, 460117, 657310, 854503, 920234, 985965, 1117427, 1380351, 1709006, 1971930, 2234854, 2300585, 2563509, 2760702, 3220819, 3352281, 4272515, 4601170, 5127018, 5587135, 5981521, 6441638, 6704562, 6901755, 7821989, 8545030, 9662457, 11174270, 11963042, 12817545, 13803510, 14526551, 15643978, 16104095, 16761405, 17944563, 19324914, 23465967, 25635090, 29053102, 29907605, 32208190, 33522810, 35889126, 39109945, 41870647, 43579653, 46931934, 48312285, 54753923, 59815210, 72632755, 78219890, 83741294, 87159306, 89722815, 96624570, 101685857, 109507846, 117329835, 125611941, 145265510, 164261769, 179445630, 203371714, 209353235, 217898265, 234659670, 251223882, 273769615, 305057571, 328523538, 418706470, 435796530, 508429285, 547539230, 610115142, 628059705, 711800999, 821308845, 1016858570, 1256119410, 1423601998, 1525287855, 1642617690, 2135402997, 3050575710, 3559004995, 4270805994, 7118009990, 10677014985, 21354029970]

約数ペア:

[(1, 21354029970), (2, 10677014985), (3, 7118009990), (5, 4270805994), (6, 3559004995), (7, 3050575710), (10, 2135402997), (13, 1642617690), (14, 1525287855), (15, 1423601998), (17, 1256119410), (21, 1016858570), (26, 821308845), (30, 711800999), (34, 628059705), (35, 610115142), (39, 547539230), (42, 508429285), (49, 435796530), (51, 418706470), (65, 328523538), (70, 305057571), (78, 273769615), (85, 251223882), (91, 234659670), (98, 217898265), (102, 209353235), (105, 203371714), (119, 179445630), (130, 164261769), (147, 145265510), (170, 125611941), (182, 117329835), (195, 109507846), (210, 101685857), (221, 96624570), (238, 89722815), (245, 87159306), (255, 83741294), (273, 78219890), (294, 72632755), (357, 59815210), (390, 54753923), (442, 48312285), (455, 46931934), (490, 43579653), (510, 41870647), (546, 39109945), (595, 35889126), (637, 33522810), (663, 32208190), (714, 29907605), (735, 29053102), (833, 25635090), (910, 23465967), (1105, 19324914), (1190, 17944563), (1274, 16761405), (1326, 16104095), (1365, 15643978), (1470, 14526551), (1547, 13803510), (1666, 12817545), (1785, 11963042), (1911, 11174270), (2210, 9662457), (2499, 8545030), (2730, 7821989), (3094, 6901755), (3185, 6704562), (3315, 6441638), (3570, 5981521), (3822, 5587135), (4165, 5127018), (4641, 4601170), (4998, 4272515), (6370, 3352281), (6630, 3220819), (7735, 2760702), (8330, 2563509), (9282, 2300585), (9555, 2234854), (10829, 1971930), (12495, 1709006), (15470, 1380351), (19110, 1117427), (21658, 985965), (23205, 920234), (24990, 854503), (32487, 657310), (46410, 460117), (54145, 394386), (64974, 328655), (65731, 324870), (108290, 197193), (131462, 162435)]