20463365

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 27094248

約数和(自身を除く): 6630883

約数列:

[1, 5, 13, 61, 65, 169, 305, 397, 793, 845, 1985, 3965, 5161, 10309, 24217, 25805, 51545, 67093, 121085, 314821, 335465, 1574105, 4092673, 20463365]

約数ペア:

[(1, 20463365), (5, 4092673), (13, 1574105), (61, 335465), (65, 314821), (169, 121085), (305, 67093), (397, 51545), (793, 25805), (845, 24217), (1985, 10309), (3965, 5161)]