21918860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{35353}}^1$

素因数の和:35393

約数の個数: 24

約数和(自身を含む): 47515776

約数和(自身を除く): 25596916

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 35353, 70706, 141412, 176765, 353530, 707060, 1095943, 2191886, 4383772, 5479715, 10959430, 21918860]

約数ペア:

[(1, 21918860), (2, 10959430), (4, 5479715), (5, 4383772), (10, 2191886), (20, 1095943), (31, 707060), (62, 353530), (124, 176765), (155, 141412), (310, 70706), (620, 35353)]