20689866

素因数分解:

$2^1\times 3^2\times {\mathrm{269}}^1\times {\mathrm{4273}}^1$

素因数の和:4550

約数の個数: 24

約数和(自身を含む): 45005220

約数和(自身を除く): 24315354

約数列:

[1, 2, 3, 6, 9, 18, 269, 538, 807, 1614, 2421, 4273, 4842, 8546, 12819, 25638, 38457, 76914, 1149437, 2298874, 3448311, 6896622, 10344933, 20689866]

約数ペア:

[(1, 20689866), (2, 10344933), (3, 6896622), (6, 3448311), (9, 2298874), (18, 1149437), (269, 76914), (538, 38457), (807, 25638), (1614, 12819), (2421, 8546), (4273, 4842)]