20971638

素因数分解:

$2^1\times 3^2\times {\mathrm{761}}^1\times {\mathrm{1531}}^1$

素因数の和:2300

約数の個数: 24

約数和(自身を含む): 45527976

約数和(自身を除く): 24556338

約数列:

[1, 2, 3, 6, 9, 18, 761, 1522, 1531, 2283, 3062, 4566, 4593, 6849, 9186, 13698, 13779, 27558, 1165091, 2330182, 3495273, 6990546, 10485819, 20971638]

約数ペア:

[(1, 20971638), (2, 10485819), (3, 6990546), (6, 3495273), (9, 2330182), (18, 1165091), (761, 27558), (1522, 13779), (1531, 13698), (2283, 9186), (3062, 6849), (4566, 4593)]