221519608

素因数分解:

$2^3\times {\mathrm{163}}^1\times {\mathrm{257}}^1\times {\mathrm{661}}^1$

素因数の和:1087

約数の個数: 32

約数和(自身を含む): 420158160

約数和(自身を除く): 198638552

約数列:

[1, 2, 4, 8, 163, 257, 326, 514, 652, 661, 1028, 1304, 1322, 2056, 2644, 5288, 41891, 83782, 107743, 167564, 169877, 215486, 335128, 339754, 430972, 679508, 861944, 1359016, 27689951, 55379902, 110759804, 221519608]

約数ペア:

[(1, 221519608), (2, 110759804), (4, 55379902), (8, 27689951), (163, 1359016), (257, 861944), (326, 679508), (514, 430972), (652, 339754), (661, 335128), (1028, 215486), (1304, 169877), (1322, 167564), (2056, 107743), (2644, 83782), (5288, 41891)]