21368490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1$

素因数の和:344

約数の個数: 128

約数和(自身を含む): 64012032

約数和(自身を除く): 42643542

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 17, 22, 26, 30, 33, 34, 39, 51, 55, 65, 66, 78, 85, 102, 110, 130, 143, 165, 170, 187, 195, 221, 255, 286, 293, 330, 374, 390, 429, 442, 510, 561, 586, 663, 715, 858, 879, 935, 1105, 1122, 1326, 1430, 1465, 1758, 1870, 2145, 2210, 2431, 2805, 2930, 3223, 3315, 3809, 4290, 4395, 4862, 4981, 5610, 6446, 6630, 7293, 7618, 8790, 9669, 9962, 11427, 12155, 14586, 14943, 16115, 19045, 19338, 22854, 24310, 24905, 29886, 32230, 36465, 38090, 41899, 48345, 49810, 54791, 57135, 64753, 72930, 74715, 83798, 96690, 109582, 114270, 125697, 129506, 149430, 164373, 194259, 209495, 251394, 273955, 323765, 328746, 388518, 418990, 547910, 628485, 647530, 712283, 821865, 971295, 1256970, 1424566, 1643730, 1942590, 2136849, 3561415, 4273698, 7122830, 10684245, 21368490]

約数ペア:

[(1, 21368490), (2, 10684245), (3, 7122830), (5, 4273698), (6, 3561415), (10, 2136849), (11, 1942590), (13, 1643730), (15, 1424566), (17, 1256970), (22, 971295), (26, 821865), (30, 712283), (33, 647530), (34, 628485), (39, 547910), (51, 418990), (55, 388518), (65, 328746), (66, 323765), (78, 273955), (85, 251394), (102, 209495), (110, 194259), (130, 164373), (143, 149430), (165, 129506), (170, 125697), (187, 114270), (195, 109582), (221, 96690), (255, 83798), (286, 74715), (293, 72930), (330, 64753), (374, 57135), (390, 54791), (429, 49810), (442, 48345), (510, 41899), (561, 38090), (586, 36465), (663, 32230), (715, 29886), (858, 24905), (879, 24310), (935, 22854), (1105, 19338), (1122, 19045), (1326, 16115), (1430, 14943), (1465, 14586), (1758, 12155), (1870, 11427), (2145, 9962), (2210, 9669), (2431, 8790), (2805, 7618), (2930, 7293), (3223, 6630), (3315, 6446), (3809, 5610), (4290, 4981), (4395, 4862)]