19217965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{1091}}^1$

素因数の和:1380

約数の個数: 16

約数和(自身を含む): 24950016

約数和(自身を除く): 5732051

約数列:

[1, 5, 13, 65, 271, 1091, 1355, 3523, 5455, 14183, 17615, 70915, 295661, 1478305, 3843593, 19217965]

約数ペア:

[(1, 19217965), (5, 3843593), (13, 1478305), (65, 295661), (271, 70915), (1091, 17615), (1355, 14183), (3523, 5455)]