64705431

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23167}}^1$

素因数の和:23203

約数の個数: 24

約数和(自身を含む): 105646080

約数和(自身を除く): 40940649

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 23167, 69501, 162169, 440173, 486507, 1135183, 1320519, 3081211, 3405549, 9243633, 21568477, 64705431]

約数ペア:

[(1, 64705431), (3, 21568477), (7, 9243633), (19, 3405549), (21, 3081211), (49, 1320519), (57, 1135183), (133, 486507), (147, 440173), (399, 162169), (931, 69501), (2793, 23167)]