21335200

素因数分解:

$2^5\times 5^2\times {\mathrm{26669}}^1$

素因数の和:26689

約数の個数: 36

約数和(自身を含む): 52086510

約数和(自身を除く): 30751310

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26669, 53338, 106676, 133345, 213352, 266690, 426704, 533380, 666725, 853408, 1066760, 1333450, 2133520, 2666900, 4267040, 5333800, 10667600, 21335200]

約数ペア:

[(1, 21335200), (2, 10667600), (4, 5333800), (5, 4267040), (8, 2666900), (10, 2133520), (16, 1333450), (20, 1066760), (25, 853408), (32, 666725), (40, 533380), (50, 426704), (80, 266690), (100, 213352), (160, 133345), (200, 106676), (400, 53338), (800, 26669)]