81680511

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{9631}}^1$

素因数の和:9902

約数の個数: 16

約数和(自身を含む): 119282688

約数和(自身を除く): 37602177

約数列:

[1, 3, 11, 33, 257, 771, 2827, 8481, 9631, 28893, 105941, 317823, 2475167, 7425501, 27226837, 81680511]

約数ペア:

[(1, 81680511), (3, 27226837), (11, 7425501), (33, 2475167), (257, 317823), (771, 105941), (2827, 28893), (8481, 9631)]