21041180

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{3911}}^1$

素因数の和:4189

約数の個数: 24

約数和(自身を含む): 44362080

約数和(自身を除く): 23320900

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 3911, 5380, 7822, 15644, 19555, 39110, 78220, 1052059, 2104118, 4208236, 5260295, 10520590, 21041180]

約数ペア:

[(1, 21041180), (2, 10520590), (4, 5260295), (5, 4208236), (10, 2104118), (20, 1052059), (269, 78220), (538, 39110), (1076, 19555), (1345, 15644), (2690, 7822), (3911, 5380)]