28391766

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{1523}}^1$

素因数の和:1780

約数の個数: 32

約数和(自身を含む): 61447680

約数和(自身を除く): 33055914

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 239, 478, 717, 1434, 1523, 3046, 3107, 4569, 6214, 9138, 9321, 18642, 19799, 39598, 59397, 118794, 363997, 727994, 1091991, 2183982, 4731961, 9463922, 14195883, 28391766]

約数ペア:

[(1, 28391766), (2, 14195883), (3, 9463922), (6, 4731961), (13, 2183982), (26, 1091991), (39, 727994), (78, 363997), (239, 118794), (478, 59397), (717, 39598), (1434, 19799), (1523, 18642), (3046, 9321), (3107, 9138), (4569, 6214)]