21160440

素因数分解:

$2^3\times 3^5\times 5^1\times 7^1\times {\mathrm{311}}^1$

素因数の和:344

約数の個数: 192

約数和(自身を含む): 81768960

約数和(自身を除く): 60608520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 243, 252, 270, 280, 311, 315, 324, 360, 378, 405, 420, 486, 504, 540, 567, 622, 630, 648, 756, 810, 840, 933, 945, 972, 1080, 1134, 1215, 1244, 1260, 1512, 1555, 1620, 1701, 1866, 1890, 1944, 2177, 2268, 2430, 2488, 2520, 2799, 2835, 3110, 3240, 3402, 3732, 3780, 4354, 4536, 4665, 4860, 5598, 5670, 6220, 6531, 6804, 7464, 7560, 8397, 8505, 8708, 9330, 9720, 10885, 11196, 11340, 12440, 13062, 13608, 13995, 16794, 17010, 17416, 18660, 19593, 21770, 22392, 22680, 25191, 26124, 27990, 32655, 33588, 34020, 37320, 39186, 41985, 43540, 50382, 52248, 55980, 58779, 65310, 67176, 68040, 75573, 78372, 83970, 87080, 97965, 100764, 111960, 117558, 125955, 130620, 151146, 156744, 167940, 176337, 195930, 201528, 235116, 251910, 261240, 293895, 302292, 335880, 352674, 377865, 391860, 470232, 503820, 529011, 587790, 604584, 705348, 755730, 783720, 881685, 1007640, 1058022, 1175580, 1410696, 1511460, 1763370, 2116044, 2351160, 2645055, 3022920, 3526740, 4232088, 5290110, 7053480, 10580220, 21160440]

約数ペア:

[(1, 21160440), (2, 10580220), (3, 7053480), (4, 5290110), (5, 4232088), (6, 3526740), (7, 3022920), (8, 2645055), (9, 2351160), (10, 2116044), (12, 1763370), (14, 1511460), (15, 1410696), (18, 1175580), (20, 1058022), (21, 1007640), (24, 881685), (27, 783720), (28, 755730), (30, 705348), (35, 604584), (36, 587790), (40, 529011), (42, 503820), (45, 470232), (54, 391860), (56, 377865), (60, 352674), (63, 335880), (70, 302292), (72, 293895), (81, 261240), (84, 251910), (90, 235116), (105, 201528), (108, 195930), (120, 176337), (126, 167940), (135, 156744), (140, 151146), (162, 130620), (168, 125955), (180, 117558), (189, 111960), (210, 100764), (216, 97965), (243, 87080), (252, 83970), (270, 78372), (280, 75573), (311, 68040), (315, 67176), (324, 65310), (360, 58779), (378, 55980), (405, 52248), (420, 50382), (486, 43540), (504, 41985), (540, 39186), (567, 37320), (622, 34020), (630, 33588), (648, 32655), (756, 27990), (810, 26124), (840, 25191), (933, 22680), (945, 22392), (972, 21770), (1080, 19593), (1134, 18660), (1215, 17416), (1244, 17010), (1260, 16794), (1512, 13995), (1555, 13608), (1620, 13062), (1701, 12440), (1866, 11340), (1890, 11196), (1944, 10885), (2177, 9720), (2268, 9330), (2430, 8708), (2488, 8505), (2520, 8397), (2799, 7560), (2835, 7464), (3110, 6804), (3240, 6531), (3402, 6220), (3732, 5670), (3780, 5598), (4354, 4860), (4536, 4665)]