21321757

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{709}}^1$

素因数の和:816

約数の個数: 16

約数和(自身を含む): 23770800

約数和(自身を除く): 2449043

約数列:

[1, 17, 29, 61, 493, 709, 1037, 1769, 12053, 20561, 30073, 43249, 349537, 735233, 1254221, 21321757]

約数ペア:

[(1, 21321757), (17, 1254221), (29, 735233), (61, 349537), (493, 43249), (709, 30073), (1037, 20561), (1769, 12053)]