18806605

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:576

約数の個数: 16

約数和(自身を含む): 23127984

約数和(自身を除く): 4321379

約数列:

[1, 5, 61, 197, 305, 313, 985, 1565, 12017, 19093, 60085, 61661, 95465, 308305, 3761321, 18806605]

約数ペア:

[(1, 18806605), (5, 3761321), (61, 308305), (197, 95465), (305, 61661), (313, 60085), (985, 19093), (1565, 12017)]