21461935

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{6397}}^1$

素因数の和:6474

約数の個数: 16

約数和(自身を含む): 28560672

約数和(自身を除く): 7098737

約数列:

[1, 5, 11, 55, 61, 305, 671, 3355, 6397, 31985, 70367, 351835, 390217, 1951085, 4292387, 21461935]

約数ペア:

[(1, 21461935), (5, 4292387), (11, 1951085), (55, 390217), (61, 351835), (305, 70367), (671, 31985), (3355, 6397)]