20147465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18233}}^1$

素因数の和:18268

約数の個数: 16

約数和(自身を含む): 27569808

約数和(自身を除く): 7422343

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 18233, 91165, 237029, 309961, 1185145, 1549805, 4029493, 20147465]

約数ペア:

[(1, 20147465), (5, 4029493), (13, 1549805), (17, 1185145), (65, 309961), (85, 237029), (221, 91165), (1105, 18233)]