21874490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198859}}^1$

素因数の和:198877

約数の個数: 16

約数和(自身を含む): 42953760

約数和(自身を除く): 21079270

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 198859, 397718, 994295, 1988590, 2187449, 4374898, 10937245, 21874490]

約数ペア:

[(1, 21874490), (2, 10937245), (5, 4374898), (10, 2187449), (11, 1988590), (22, 994295), (55, 397718), (110, 198859)]