20390174

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{12239}}^1$

素因数の和:12272

約数の個数: 24

約数和(自身を含む): 37674720

約数和(自身を除く): 17284546

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 833, 1666, 12239, 24478, 85673, 171346, 208063, 416126, 599711, 1199422, 1456441, 2912882, 10195087, 20390174]

約数ペア:

[(1, 20390174), (2, 10195087), (7, 2912882), (14, 1456441), (17, 1199422), (34, 599711), (49, 416126), (98, 208063), (119, 171346), (238, 85673), (833, 24478), (1666, 12239)]