21420060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4519}}^1$

素因数の和:4610

約数の個数: 48

約数和(自身を含む): 60748800

約数和(自身を除く): 39328740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4519, 4740, 9038, 13557, 18076, 22595, 27114, 45190, 54228, 67785, 90380, 135570, 271140, 357001, 714002, 1071003, 1428004, 1785005, 2142006, 3570010, 4284012, 5355015, 7140020, 10710030, 21420060]

約数ペア:

[(1, 21420060), (2, 10710030), (3, 7140020), (4, 5355015), (5, 4284012), (6, 3570010), (10, 2142006), (12, 1785005), (15, 1428004), (20, 1071003), (30, 714002), (60, 357001), (79, 271140), (158, 135570), (237, 90380), (316, 67785), (395, 54228), (474, 45190), (790, 27114), (948, 22595), (1185, 18076), (1580, 13557), (2370, 9038), (4519, 4740)]