42687

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:60

約数の個数: 20

約数和(自身を含む): 69696

約数和(自身を除く): 27009

約数列:

[1, 3, 9, 17, 27, 31, 51, 81, 93, 153, 279, 459, 527, 837, 1377, 1581, 2511, 4743, 14229, 42687]

約数ペア:

[(1, 42687), (3, 14229), (9, 4743), (17, 2511), (27, 1581), (31, 1377), (51, 837), (81, 527), (93, 459), (153, 279)]