64211021

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 77664096

約数和(自身を除く): 13453075

約数列:

[1, 7, 37, 49, 107, 259, 331, 749, 1813, 2317, 3959, 5243, 12247, 16219, 27713, 35417, 85729, 193991, 247919, 600103, 1310429, 1735433, 9173003, 64211021]

約数ペア:

[(1, 64211021), (7, 9173003), (37, 1735433), (49, 1310429), (107, 600103), (259, 247919), (331, 193991), (749, 85729), (1813, 35417), (2317, 27713), (3959, 16219), (5243, 12247)]