20958663

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{13513}}^1$

素因数の和:13574

約数の個数: 16

約数和(自身を含む): 31136256

約数和(自身を除く): 10177593

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 13513, 40539, 148643, 445929, 635111, 1905333, 6986221, 20958663]

約数ペア:

[(1, 20958663), (3, 6986221), (11, 1905333), (33, 635111), (47, 445929), (141, 148643), (517, 40539), (1551, 13513)]