21202700

素因数分解:

$2^2\times 5^2\times {\mathrm{149}}^1\times {\mathrm{1423}}^1$

素因数の和:1586

約数の個数: 36

約数和(自身を含む): 46351200

約数和(自身を除く): 25148500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 149, 298, 596, 745, 1423, 1490, 2846, 2980, 3725, 5692, 7115, 7450, 14230, 14900, 28460, 35575, 71150, 142300, 212027, 424054, 848108, 1060135, 2120270, 4240540, 5300675, 10601350, 21202700]

約数ペア:

[(1, 21202700), (2, 10601350), (4, 5300675), (5, 4240540), (10, 2120270), (20, 1060135), (25, 848108), (50, 424054), (100, 212027), (149, 142300), (298, 71150), (596, 35575), (745, 28460), (1423, 14900), (1490, 14230), (2846, 7450), (2980, 7115), (3725, 5692)]