21768835

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{2521}}^1$

素因数の和:2694

約数の個数: 16

約数和(自身を含む): 28690272

約数和(自身を除く): 6921437

約数列:

[1, 5, 11, 55, 157, 785, 1727, 2521, 8635, 12605, 27731, 138655, 395797, 1978985, 4353767, 21768835]

約数ペア:

[(1, 21768835), (5, 4353767), (11, 1978985), (55, 395797), (157, 138655), (785, 27731), (1727, 12605), (2521, 8635)]