20707115

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28961}}^1$

素因数の和:28990

約数の個数: 16

約数和(自身を含む): 29193696

約数和(自身を除く): 8486581

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28961, 144805, 318571, 376493, 1592855, 1882465, 4141423, 20707115]

約数ペア:

[(1, 20707115), (5, 4141423), (11, 1882465), (13, 1592855), (55, 376493), (65, 318571), (143, 144805), (715, 28961)]