18401283

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 28684800

約数和(自身を除く): 10283517

約数列:

[1, 3, 9, 27, 29, 71, 87, 213, 261, 331, 639, 783, 993, 1917, 2059, 2979, 6177, 8937, 9599, 18531, 23501, 28797, 55593, 70503, 86391, 211509, 259173, 634527, 681529, 2044587, 6133761, 18401283]

約数ペア:

[(1, 18401283), (3, 6133761), (9, 2044587), (27, 681529), (29, 634527), (71, 259173), (87, 211509), (213, 86391), (261, 70503), (331, 55593), (639, 28797), (783, 23501), (993, 18531), (1917, 9599), (2059, 8937), (2979, 6177)]