520001139

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1303261}}^1$

素因数の和:1303290

約数の個数: 16

約数和(自身を含む): 834087680

約数和(自身を除く): 314086541

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 1303261, 3909783, 9122827, 24761959, 27368481, 74285877, 173333713, 520001139]

約数ペア:

[(1, 520001139), (3, 173333713), (7, 74285877), (19, 27368481), (21, 24761959), (57, 9122827), (133, 3909783), (399, 1303261)]