21098980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150707}}^1$

素因数の和:150723

約数の個数: 24

約数和(自身を含む): 50637888

約数和(自身を除く): 29538908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150707, 301414, 602828, 753535, 1054949, 1507070, 2109898, 3014140, 4219796, 5274745, 10549490, 21098980]

約数ペア:

[(1, 21098980), (2, 10549490), (4, 5274745), (5, 4219796), (7, 3014140), (10, 2109898), (14, 1507070), (20, 1054949), (28, 753535), (35, 602828), (70, 301414), (140, 150707)]