18855991

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{1051}}^1$

素因数の和:1302

約数の個数: 16

約数和(自身を含む): 23632128

約数和(自身を除く): 4776137

約数列:

[1, 7, 11, 77, 233, 1051, 1631, 2563, 7357, 11561, 17941, 80927, 244883, 1714181, 2693713, 18855991]

約数ペア:

[(1, 18855991), (7, 2693713), (11, 1714181), (77, 244883), (233, 80927), (1051, 17941), (1631, 11561), (2563, 7357)]