261921284

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{1597081}}^1$

素因数の和:1597126

約数の個数: 12

約数和(自身を含む): 469542108

約数和(自身を除く): 207620824

約数列:

[1, 2, 4, 41, 82, 164, 1597081, 3194162, 6388324, 65480321, 130960642, 261921284]

約数ペア:

[(1, 261921284), (2, 130960642), (4, 65480321), (41, 6388324), (82, 3194162), (164, 1597081)]