21140623

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{467}}^1$

素因数の和:726

約数の個数: 16

約数和(自身を含む): 25159680

約数和(自身を除く): 4019057

約数列:

[1, 7, 29, 203, 223, 467, 1561, 3269, 6467, 13543, 45269, 94801, 104141, 728987, 3020089, 21140623]

約数ペア:

[(1, 21140623), (7, 3020089), (29, 728987), (203, 104141), (223, 94801), (467, 45269), (1561, 13543), (3269, 6467)]