21421290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{467}}^1$

素因数の和:627

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 35187990

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 139, 165, 278, 330, 417, 467, 695, 834, 934, 1390, 1401, 1529, 2085, 2335, 2802, 3058, 4170, 4587, 4670, 5137, 7005, 7645, 9174, 10274, 14010, 15290, 15411, 22935, 25685, 30822, 45870, 51370, 64913, 77055, 129826, 154110, 194739, 324565, 389478, 649130, 714043, 973695, 1428086, 1947390, 2142129, 3570215, 4284258, 7140430, 10710645, 21421290]

約数ペア:

[(1, 21421290), (2, 10710645), (3, 7140430), (5, 4284258), (6, 3570215), (10, 2142129), (11, 1947390), (15, 1428086), (22, 973695), (30, 714043), (33, 649130), (55, 389478), (66, 324565), (110, 194739), (139, 154110), (165, 129826), (278, 77055), (330, 64913), (417, 51370), (467, 45870), (695, 30822), (834, 25685), (934, 22935), (1390, 15411), (1401, 15290), (1529, 14010), (2085, 10274), (2335, 9174), (2802, 7645), (3058, 7005), (4170, 5137), (4587, 4670)]