20109705

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{757}}^1$

素因数の和:806

約数の個数: 64

約数和(自身を含む): 41914368

約数和(自身を除く): 21804663

約数列:

[1, 3, 5, 7, 11, 15, 21, 23, 33, 35, 55, 69, 77, 105, 115, 161, 165, 231, 253, 345, 385, 483, 757, 759, 805, 1155, 1265, 1771, 2271, 2415, 3785, 3795, 5299, 5313, 8327, 8855, 11355, 15897, 17411, 24981, 26495, 26565, 41635, 52233, 58289, 79485, 87055, 121877, 124905, 174867, 191521, 261165, 291445, 365631, 574563, 609385, 874335, 957605, 1340647, 1828155, 2872815, 4021941, 6703235, 20109705]

約数ペア:

[(1, 20109705), (3, 6703235), (5, 4021941), (7, 2872815), (11, 1828155), (15, 1340647), (21, 957605), (23, 874335), (33, 609385), (35, 574563), (55, 365631), (69, 291445), (77, 261165), (105, 191521), (115, 174867), (161, 124905), (165, 121877), (231, 87055), (253, 79485), (345, 58289), (385, 52233), (483, 41635), (757, 26565), (759, 26495), (805, 24981), (1155, 17411), (1265, 15897), (1771, 11355), (2271, 8855), (2415, 8327), (3785, 5313), (3795, 5299)]