21646760

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18661}}^1$

素因数の和:18701

約数の個数: 32

約数和(自身を含む): 50387400

約数和(自身を除く): 28740640

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18661, 37322, 74644, 93305, 149288, 186610, 373220, 541169, 746440, 1082338, 2164676, 2705845, 4329352, 5411690, 10823380, 21646760]

約数ペア:

[(1, 21646760), (2, 10823380), (4, 5411690), (5, 4329352), (8, 2705845), (10, 2164676), (20, 1082338), (29, 746440), (40, 541169), (58, 373220), (116, 186610), (145, 149288), (232, 93305), (290, 74644), (580, 37322), (1160, 18661)]