21155661505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{5869}}^1\times {\mathrm{65539}}^1$

素因数の和:71424

約数の個数: 16

約数和(自身を含む): 27699825600

約数和(自身を除く): 6544164095

約数列:

[1, 5, 11, 55, 5869, 29345, 64559, 65539, 322795, 327695, 720929, 3604645, 384648391, 1923241955, 4231132301, 21155661505]

約数ペア:

[(1, 21155661505), (5, 4231132301), (11, 1923241955), (55, 384648391), (5869, 3604645), (29345, 720929), (64559, 327695), (65539, 322795)]