64881313

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1\times {\mathrm{631}}^1$

素因数の和:1072

約数の個数: 16

約数和(自身を含む): 76466944

約数和(自身を除く): 11585631

約数列:

[1, 7, 37, 259, 397, 631, 2779, 4417, 14689, 23347, 102823, 163429, 250507, 1753549, 9268759, 64881313]

約数ペア:

[(1, 64881313), (7, 9268759), (37, 1753549), (259, 250507), (397, 163429), (631, 102823), (2779, 23347), (4417, 14689)]