21611185

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{2081}}^1$

素因数の和:2184

約数の個数: 16

約数和(自身を含む): 27182592

約数和(自身を除く): 5571407

約数列:

[1, 5, 31, 67, 155, 335, 2077, 2081, 10385, 10405, 64511, 139427, 322555, 697135, 4322237, 21611185]

約数ペア:

[(1, 21611185), (5, 4322237), (31, 697135), (67, 322555), (155, 139427), (335, 64511), (2077, 10405), (2081, 10385)]