20024879

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 24856560

約数和(自身を除く): 4831681

約数列:

[1, 7, 19, 49, 133, 137, 157, 931, 959, 1099, 2603, 2983, 6713, 7693, 18221, 20881, 21509, 127547, 146167, 150563, 408671, 1053941, 2860697, 20024879]

約数ペア:

[(1, 20024879), (7, 2860697), (19, 1053941), (49, 408671), (133, 150563), (137, 146167), (157, 127547), (931, 21509), (959, 20881), (1099, 18221), (2603, 7693), (2983, 6713)]