78239637

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{20359}}^1$

素因数の和:20433

約数の個数: 24

約数和(自身を含む): 131281280

約数和(自身を除く): 53041643

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 20359, 61077, 142513, 183231, 427539, 1241899, 1282617, 3725697, 8693293, 11177091, 26079879, 78239637]

約数ペア:

[(1, 78239637), (3, 26079879), (7, 11177091), (9, 8693293), (21, 3725697), (61, 1282617), (63, 1241899), (183, 427539), (427, 183231), (549, 142513), (1281, 61077), (3843, 20359)]