21497036

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{3847}}^1$

素因数の和:3989

約数の個数: 24

約数和(自身を含む): 41373696

約数和(自身を除く): 19876660

約数列:

[1, 2, 4, 11, 22, 44, 127, 254, 508, 1397, 2794, 3847, 5588, 7694, 15388, 42317, 84634, 169268, 488569, 977138, 1954276, 5374259, 10748518, 21497036]

約数ペア:

[(1, 21497036), (2, 10748518), (4, 5374259), (11, 1954276), (22, 977138), (44, 488569), (127, 169268), (254, 84634), (508, 42317), (1397, 15388), (2794, 7694), (3847, 5588)]