21218150

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{9029}}^1$

素因数の和:9088

約数の個数: 24

約数和(自身を含む): 40309920

約数和(自身を除く): 19091770

約数列:

[1, 2, 5, 10, 25, 47, 50, 94, 235, 470, 1175, 2350, 9029, 18058, 45145, 90290, 225725, 424363, 451450, 848726, 2121815, 4243630, 10609075, 21218150]

約数ペア:

[(1, 21218150), (2, 10609075), (5, 4243630), (10, 2121815), (25, 848726), (47, 451450), (50, 424363), (94, 225725), (235, 90290), (470, 45145), (1175, 18058), (2350, 9029)]