81507843

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{743}}^1$

素因数の和:1008

約数の個数: 32

約数和(自身を含む): 128563200

約数和(自身を除く): 47055357

約数列:

[1, 3, 9, 17, 27, 51, 153, 239, 459, 717, 743, 2151, 2229, 4063, 6453, 6687, 12189, 12631, 20061, 36567, 37893, 109701, 113679, 177577, 341037, 532731, 1598193, 3018809, 4794579, 9056427, 27169281, 81507843]

約数ペア:

[(1, 81507843), (3, 27169281), (9, 9056427), (17, 4794579), (27, 3018809), (51, 1598193), (153, 532731), (239, 341037), (459, 177577), (717, 113679), (743, 109701), (2151, 37893), (2229, 36567), (4063, 20061), (6453, 12631), (6687, 12189)]