21415816

素因数分解:

$2^3\times {\mathrm{53}}^2\times {\mathrm{953}}^1$

素因数の和:1065

約数の個数: 24

約数和(自身を含む): 40969530

約数和(自身を除く): 19553714

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 953, 1906, 2809, 3812, 5618, 7624, 11236, 22472, 50509, 101018, 202036, 404072, 2676977, 5353954, 10707908, 21415816]

約数ペア:

[(1, 21415816), (2, 10707908), (4, 5353954), (8, 2676977), (53, 404072), (106, 202036), (212, 101018), (424, 50509), (953, 22472), (1906, 11236), (2809, 7624), (3812, 5618)]