21500765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{30071}}^1$

素因数の和:30100

約数の個数: 16

約数和(自身を含む): 30312576

約数和(自身を除く): 8811811

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 30071, 150355, 330781, 390923, 1653905, 1954615, 4300153, 21500765]

約数ペア:

[(1, 21500765), (5, 4300153), (11, 1954615), (13, 1653905), (55, 390923), (65, 330781), (143, 150355), (715, 30071)]