42720307

素因数分解:

$7^3\times {\mathrm{59}}^1\times {\mathrm{2111}}^1$

素因数の和:2191

約数の個数: 16

約数和(自身を含む): 50688000

約数和(自身を除く): 7967693

約数列:

[1, 7, 49, 59, 343, 413, 2111, 2891, 14777, 20237, 103439, 124549, 724073, 871843, 6102901, 42720307]

約数ペア:

[(1, 42720307), (7, 6102901), (49, 871843), (59, 724073), (343, 124549), (413, 103439), (2111, 20237), (2891, 14777)]