20190781

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{887}}^1$

素因数の和:1020

約数の個数: 16

約数和(自身を含む): 23272704

約数和(自身を除く): 3081923

約数列:

[1, 13, 17, 103, 221, 887, 1339, 1751, 11531, 15079, 22763, 91361, 196027, 1187693, 1553137, 20190781]

約数ペア:

[(1, 20190781), (13, 1553137), (17, 1187693), (103, 196027), (221, 91361), (887, 22763), (1339, 15079), (1751, 11531)]