21223670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163259}}^1$

素因数の和:163279

約数の個数: 16

約数和(自身を含む): 41141520

約数和(自身を除く): 19917850

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163259, 326518, 816295, 1632590, 2122367, 4244734, 10611835, 21223670]

約数ペア:

[(1, 21223670), (2, 10611835), (5, 4244734), (10, 2122367), (13, 1632590), (26, 816295), (65, 326518), (130, 163259)]