21989020

素因数分解:

$2^2\times 5^1\times {\mathrm{587}}^1\times {\mathrm{1873}}^1$

素因数の和:2469

約数の個数: 24

約数和(自身を含む): 46280304

約数和(自身を除く): 24291284

約数列:

[1, 2, 4, 5, 10, 20, 587, 1174, 1873, 2348, 2935, 3746, 5870, 7492, 9365, 11740, 18730, 37460, 1099451, 2198902, 4397804, 5497255, 10994510, 21989020]

約数ペア:

[(1, 21989020), (2, 10994510), (4, 5497255), (5, 4397804), (10, 2198902), (20, 1099451), (587, 37460), (1174, 18730), (1873, 11740), (2348, 9365), (2935, 7492), (3746, 5870)]