81736047

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{15061}}^1$

素因数の和:15140

約数の個数: 20

約数和(自身を含む): 123930136

約数和(自身を除く): 42194089

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 15061, 45183, 135549, 406647, 1009087, 1219941, 3027261, 9081783, 27245349, 81736047]

約数ペア:

[(1, 81736047), (3, 27245349), (9, 9081783), (27, 3027261), (67, 1219941), (81, 1009087), (201, 406647), (603, 135549), (1809, 45183), (5427, 15061)]