21270745

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{4999}}^1$

素因数の和:5064

約数の個数: 16

約数和(自身を含む): 27360000

約数和(自身を除く): 6089255

約数列:

[1, 5, 23, 37, 115, 185, 851, 4255, 4999, 24995, 114977, 184963, 574885, 924815, 4254149, 21270745]

約数ペア:

[(1, 21270745), (5, 4254149), (23, 924815), (37, 574885), (115, 184963), (185, 114977), (851, 24995), (4255, 4999)]