20005879

素因数分解:

${\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{521}}^1$

素因数の和:630

約数の個数: 16

約数和(自身を含む): 22049280

約数和(自身を除く): 2043401

約数列:

[1, 19, 43, 47, 521, 817, 893, 2021, 9899, 22403, 24487, 38399, 425657, 465253, 1052941, 20005879]

約数ペア:

[(1, 20005879), (19, 1052941), (43, 465253), (47, 425657), (521, 38399), (817, 24487), (893, 22403), (2021, 9899)]