20958847

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2113}}^1$

素因数の和:2242

約数の個数: 16

約数和(自身を含む): 26044480

約数和(自身を除く): 5085633

約数列:

[1, 7, 13, 91, 109, 763, 1417, 2113, 9919, 14791, 27469, 192283, 230317, 1612219, 2994121, 20958847]

約数ペア:

[(1, 20958847), (7, 2994121), (13, 1612219), (91, 230317), (109, 192283), (763, 27469), (1417, 14791), (2113, 9919)]