21631450

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{4861}}^1$

素因数の和:4962

約数の個数: 24

約数和(自身を含む): 40694940

約数和(自身を除く): 19063490

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4450, 4861, 9722, 24305, 48610, 121525, 243050, 432629, 865258, 2163145, 4326290, 10815725, 21631450]

約数ペア:

[(1, 21631450), (2, 10815725), (5, 4326290), (10, 2163145), (25, 865258), (50, 432629), (89, 243050), (178, 121525), (445, 48610), (890, 24305), (2225, 9722), (4450, 4861)]