20444905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8501}}^1$

素因数の和:8556

約数の個数: 16

約数和(自身を含む): 27138384

約数和(自身を除く): 6693479

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 8501, 42505, 110513, 314537, 552565, 1572685, 4088981, 20444905]

約数ペア:

[(1, 20444905), (5, 4088981), (13, 1572685), (37, 552565), (65, 314537), (185, 110513), (481, 42505), (2405, 8501)]