18179408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1231}}^1$

素因数の和:1323

約数の個数: 40

約数和(自身を含む): 38497536

約数和(自身を除く): 20318128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 142, 208, 284, 568, 923, 1136, 1231, 1846, 2462, 3692, 4924, 7384, 9848, 14768, 16003, 19696, 32006, 64012, 87401, 128024, 174802, 256048, 349604, 699208, 1136213, 1398416, 2272426, 4544852, 9089704, 18179408]

約数ペア:

[(1, 18179408), (2, 9089704), (4, 4544852), (8, 2272426), (13, 1398416), (16, 1136213), (26, 699208), (52, 349604), (71, 256048), (104, 174802), (142, 128024), (208, 87401), (284, 64012), (568, 32006), (923, 19696), (1136, 16003), (1231, 14768), (1846, 9848), (2462, 7384), (3692, 4924)]