20684456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{3371}}^1$

素因数の和:3449

約数の個数: 32

約数和(自身を含む): 42487200

約数和(自身を除く): 21802744

約数列:

[1, 2, 4, 8, 13, 26, 52, 59, 104, 118, 236, 472, 767, 1534, 3068, 3371, 6136, 6742, 13484, 26968, 43823, 87646, 175292, 198889, 350584, 397778, 795556, 1591112, 2585557, 5171114, 10342228, 20684456]

約数ペア:

[(1, 20684456), (2, 10342228), (4, 5171114), (8, 2585557), (13, 1591112), (26, 795556), (52, 397778), (59, 350584), (104, 198889), (118, 175292), (236, 87646), (472, 43823), (767, 26968), (1534, 13484), (3068, 6742), (3371, 6136)]