15978765

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{857}}^1$

素因数の和:989

約数の個数: 32

約数和(自身を含む): 28169856

約数和(自身を除く): 12191091

約数列:

[1, 3, 5, 11, 15, 33, 55, 113, 165, 339, 565, 857, 1243, 1695, 2571, 3729, 4285, 6215, 9427, 12855, 18645, 28281, 47135, 96841, 141405, 290523, 484205, 1065251, 1452615, 3195753, 5326255, 15978765]

約数ペア:

[(1, 15978765), (3, 5326255), (5, 3195753), (11, 1452615), (15, 1065251), (33, 484205), (55, 290523), (113, 141405), (165, 96841), (339, 47135), (565, 28281), (857, 18645), (1243, 12855), (1695, 9427), (2571, 6215), (3729, 4285)]