21026135

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:347

約数の個数: 24

約数和(自身を含む): 27669600

約数和(自身を除く): 6643465

約数列:

[1, 5, 13, 65, 149, 167, 169, 745, 835, 845, 1937, 2171, 9685, 10855, 24883, 25181, 28223, 124415, 125905, 141115, 323479, 1617395, 4205227, 21026135]

約数ペア:

[(1, 21026135), (5, 4205227), (13, 1617395), (65, 323479), (149, 141115), (167, 125905), (169, 124415), (745, 28223), (835, 25181), (845, 24883), (1937, 10855), (2171, 9685)]