81723843

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{389}}^1$

素因数の和:680

約数の個数: 32

約数和(自身を含む): 125798400

約数和(自身を除く): 44074557

約数列:

[1, 3, 9, 27, 31, 93, 251, 279, 389, 753, 837, 1167, 2259, 3501, 6777, 7781, 10503, 12059, 23343, 36177, 70029, 97639, 108531, 210087, 292917, 325593, 878751, 2636253, 3026809, 9080427, 27241281, 81723843]

約数ペア:

[(1, 81723843), (3, 27241281), (9, 9080427), (27, 3026809), (31, 2636253), (93, 878751), (251, 325593), (279, 292917), (389, 210087), (753, 108531), (837, 97639), (1167, 70029), (2259, 36177), (3501, 23343), (6777, 12059), (7781, 10503)]