21671165

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1733}}^1$

素因数の和:1840

約数の個数: 16

約数和(自身を含む): 27092016

約数和(自身を除く): 5420851

約数列:

[1, 5, 41, 61, 205, 305, 1733, 2501, 8665, 12505, 71053, 105713, 355265, 528565, 4334233, 21671165]

約数ペア:

[(1, 21671165), (5, 4334233), (41, 528565), (61, 355265), (205, 105713), (305, 71053), (1733, 12505), (2501, 8665)]