21085108

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{1381}}^1$

素因数の和:1743

約数の個数: 24

約数和(自身を含む): 40398624

約数和(自身を除く): 19313516

約数列:

[1, 2, 4, 11, 22, 44, 347, 694, 1381, 1388, 2762, 3817, 5524, 7634, 15191, 15268, 30382, 60764, 479207, 958414, 1916828, 5271277, 10542554, 21085108]

約数ペア:

[(1, 21085108), (2, 10542554), (4, 5271277), (11, 1916828), (22, 958414), (44, 479207), (347, 60764), (694, 30382), (1381, 15268), (1388, 15191), (2762, 7634), (3817, 5524)]