19535555

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{379}}^1$

素因数の和:471

約数の個数: 24

約数和(自身を含む): 25868880

約数和(自身を除く): 6333325

約数列:

[1, 5, 13, 61, 65, 169, 305, 379, 793, 845, 1895, 3965, 4927, 10309, 23119, 24635, 51545, 64051, 115595, 300547, 320255, 1502735, 3907111, 19535555]

約数ペア:

[(1, 19535555), (5, 3907111), (13, 1502735), (61, 320255), (65, 300547), (169, 115595), (305, 64051), (379, 51545), (793, 24635), (845, 23119), (1895, 10309), (3965, 4927)]