28131381

素因数分解:

$3^7\times {\mathrm{19}}^1\times {\mathrm{677}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 44476800

約数和(自身を除く): 16345419

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 677, 729, 1539, 2031, 2187, 4617, 6093, 12863, 13851, 18279, 38589, 41553, 54837, 115767, 164511, 347301, 493533, 1041903, 1480599, 3125709, 9377127, 28131381]

約数ペア:

[(1, 28131381), (3, 9377127), (9, 3125709), (19, 1480599), (27, 1041903), (57, 493533), (81, 347301), (171, 164511), (243, 115767), (513, 54837), (677, 41553), (729, 38589), (1539, 18279), (2031, 13851), (2187, 12863), (4617, 6093)]