19906538

素因数分解:

$2^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1\times {\mathrm{269}}^1$

素因数の和:661

約数の個数: 16

約数和(自身を含む): 30287520

約数和(自身を除く): 10380982

約数列:

[1, 2, 163, 227, 269, 326, 454, 538, 37001, 43847, 61063, 74002, 87694, 122126, 9953269, 19906538]

約数ペア:

[(1, 19906538), (2, 9953269), (163, 122126), (227, 87694), (269, 74002), (326, 61063), (454, 43847), (538, 37001)]