21136505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{11213}}^1$

素因数の和:11260

約数の個数: 16

約数和(自身を含む): 28259280

約数和(自身を除く): 7122775

約数列:

[1, 5, 13, 29, 65, 145, 377, 1885, 11213, 56065, 145769, 325177, 728845, 1625885, 4227301, 21136505]

約数ペア:

[(1, 21136505), (5, 4227301), (13, 1625885), (29, 728845), (65, 325177), (145, 145769), (377, 56065), (1885, 11213)]