21291310

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{125243}}^1$

素因数の和:125267

約数の個数: 16

約数和(自身を含む): 40579056

約数和(自身を除く): 19287746

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 125243, 250486, 626215, 1252430, 2129131, 4258262, 10645655, 21291310]

約数ペア:

[(1, 21291310), (2, 10645655), (5, 4258262), (10, 2129131), (17, 1252430), (34, 626215), (85, 250486), (170, 125243)]