21302485

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2609}}^1$

素因数の和:2708

約数の個数: 16

約数和(自身を含む): 27060480

約数和(自身を除く): 5757995

約数列:

[1, 5, 23, 71, 115, 355, 1633, 2609, 8165, 13045, 60007, 185239, 300035, 926195, 4260497, 21302485]

約数ペア:

[(1, 21302485), (5, 4260497), (23, 926195), (71, 300035), (115, 185239), (355, 60007), (1633, 13045), (2609, 8165)]