21951995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{739}}^1$

素因数の和:1214

約数の個数: 16

約数和(自身を含む): 28469280

約数和(自身を除く): 6517285

約数列:

[1, 5, 13, 65, 457, 739, 2285, 3695, 5941, 9607, 29705, 48035, 337723, 1688615, 4390399, 21951995]

約数ペア:

[(1, 21951995), (5, 4390399), (13, 1688615), (65, 337723), (457, 48035), (739, 29705), (2285, 9607), (3695, 5941)]