20185191

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{577}}^1$

素因数の和:632

約数の個数: 36

約数和(自身を含む): 33001488

約数和(自身を除く): 12816297

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 169, 207, 299, 507, 577, 897, 1521, 1731, 2691, 3887, 5193, 7501, 11661, 13271, 22503, 34983, 39813, 67509, 97513, 119439, 172523, 292539, 517569, 877617, 1552707, 2242799, 6728397, 20185191]

約数ペア:

[(1, 20185191), (3, 6728397), (9, 2242799), (13, 1552707), (23, 877617), (39, 517569), (69, 292539), (117, 172523), (169, 119439), (207, 97513), (299, 67509), (507, 39813), (577, 34983), (897, 22503), (1521, 13271), (1731, 11661), (2691, 7501), (3887, 5193)]