20519395

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{3547}}^1$

素因数の和:3654

約数の個数: 16

約数和(自身を含む): 26822880

約数和(自身を除く): 6303485

約数列:

[1, 5, 13, 65, 89, 445, 1157, 3547, 5785, 17735, 46111, 230555, 315683, 1578415, 4103879, 20519395]

約数ペア:

[(1, 20519395), (5, 4103879), (13, 1578415), (65, 315683), (89, 230555), (445, 46111), (1157, 17735), (3547, 5785)]