21336445

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19309}}^1$

素因数の和:19344

約数の個数: 16

約数和(自身を含む): 29196720

約数和(自身を除く): 7860275

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 19309, 96545, 251017, 328253, 1255085, 1641265, 4267289, 21336445]

約数ペア:

[(1, 21336445), (5, 4267289), (13, 1641265), (17, 1255085), (65, 328253), (85, 251017), (221, 96545), (1105, 19309)]