21039455

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1949}}^1$

素因数の和:2098

約数の個数: 16

約数和(自身を含む): 26956800

約数和(自身を除く): 5917345

約数列:

[1, 5, 17, 85, 127, 635, 1949, 2159, 9745, 10795, 33133, 165665, 247523, 1237615, 4207891, 21039455]

約数ペア:

[(1, 21039455), (5, 4207891), (17, 1237615), (85, 247523), (127, 165665), (635, 33133), (1949, 10795), (2159, 9745)]