20402921

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{9137}}^1$

素因数の和:9184

約数の個数: 16

約数和(自身を含む): 26317440

約数和(自身を除く): 5914519

約数列:

[1, 7, 11, 29, 77, 203, 319, 2233, 9137, 63959, 100507, 264973, 703549, 1854811, 2914703, 20402921]

約数ペア:

[(1, 20402921), (7, 2914703), (11, 1854811), (29, 703549), (77, 264973), (203, 100507), (319, 63959), (2233, 9137)]