21805190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{1187}}^1$

素因数の和:1372

約数の個数: 32

約数和(自身を含む): 43110144

約数和(自身を除く): 21304954

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 167, 334, 835, 1187, 1670, 1837, 2374, 3674, 5935, 9185, 11870, 13057, 18370, 26114, 65285, 130570, 198229, 396458, 991145, 1982290, 2180519, 4361038, 10902595, 21805190]

約数ペア:

[(1, 21805190), (2, 10902595), (5, 4361038), (10, 2180519), (11, 1982290), (22, 991145), (55, 396458), (110, 198229), (167, 130570), (334, 65285), (835, 26114), (1187, 18370), (1670, 13057), (1837, 11870), (2374, 9185), (3674, 5935)]