19507891

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{857}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 22486464

約数和(自身を除く): 2978573

約数列:

[1, 13, 17, 103, 221, 857, 1339, 1751, 11141, 14569, 22763, 88271, 189397, 1147523, 1500607, 19507891]

約数ペア:

[(1, 19507891), (13, 1500607), (17, 1147523), (103, 189397), (221, 88271), (857, 22763), (1339, 14569), (1751, 11141)]