18947188

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1831}}^1$

素因数の和:2047

約数の個数: 24

約数和(自身を含む): 35907200

約数和(自身を除く): 16960012

約数列:

[1, 2, 4, 13, 26, 52, 199, 398, 796, 1831, 2587, 3662, 5174, 7324, 10348, 23803, 47606, 95212, 364369, 728738, 1457476, 4736797, 9473594, 18947188]

約数ペア:

[(1, 18947188), (2, 9473594), (4, 4736797), (13, 1457476), (26, 728738), (52, 364369), (199, 95212), (398, 47606), (796, 23803), (1831, 10348), (2587, 7324), (3662, 5174)]