18742311

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4877}}^1$

素因数の和:4951

約数の個数: 24

約数和(自身を含む): 31453344

約数和(自身を除く): 12711033

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 4877, 14631, 34139, 43893, 102417, 297497, 307251, 892491, 2082479, 2677473, 6247437, 18742311]

約数ペア:

[(1, 18742311), (3, 6247437), (7, 2677473), (9, 2082479), (21, 892491), (61, 307251), (63, 297497), (183, 102417), (427, 43893), (549, 34139), (1281, 14631), (3843, 4877)]