4237821

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{491}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 7061184

約数和(自身を除く): 2823363

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 491, 959, 1233, 1473, 2877, 3437, 4419, 8631, 10311, 30933, 67267, 201801, 470869, 605403, 1412607, 4237821]

約数ペア:

[(1, 4237821), (3, 1412607), (7, 605403), (9, 470869), (21, 201801), (63, 67267), (137, 30933), (411, 10311), (491, 8631), (959, 4419), (1233, 3437), (1473, 2877)]