42178887

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{30631}}^1$

素因数の和:30660

約数の個数: 20

約数和(自身を含む): 66716496

約数和(自身を除く): 24537609

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 30631, 91893, 275679, 520727, 827037, 1562181, 2481111, 4686543, 14059629, 42178887]

約数ペア:

[(1, 42178887), (3, 14059629), (9, 4686543), (17, 2481111), (27, 1562181), (51, 827037), (81, 520727), (153, 275679), (459, 91893), (1377, 30631)]