81667411

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{2549}}^1$

素因数の和:2778

約数の個数: 16

約数和(自身を含む): 97920000

約数和(自身を除く): 16252589

約数列:

[1, 7, 23, 161, 199, 1393, 2549, 4577, 17843, 32039, 58627, 410389, 507251, 3550757, 11666773, 81667411]

約数ペア:

[(1, 81667411), (7, 11666773), (23, 3550757), (161, 507251), (199, 410389), (1393, 58627), (2549, 32039), (4577, 17843)]