21717200

素因数分解:

$2^4\times 5^2\times {\mathrm{54293}}^1$

素因数の和:54311

約数の個数: 30

約数和(自身を含む): 52176534

約数和(自身を除く): 30459334

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 54293, 108586, 217172, 271465, 434344, 542930, 868688, 1085860, 1357325, 2171720, 2714650, 4343440, 5429300, 10858600, 21717200]

約数ペア:

[(1, 21717200), (2, 10858600), (4, 5429300), (5, 4343440), (8, 2714650), (10, 2171720), (16, 1357325), (20, 1085860), (25, 868688), (40, 542930), (50, 434344), (80, 271465), (100, 217172), (200, 108586), (400, 54293)]