128537307

素因数分解:

$3^3\times {\mathrm{239}}^1\times {\mathrm{19919}}^1$

素因数の和:20167

約数の個数: 16

約数和(自身を含む): 191232000

約数和(自身を除く): 62694693

約数列:

[1, 3, 9, 27, 239, 717, 2151, 6453, 19919, 59757, 179271, 537813, 4760641, 14281923, 42845769, 128537307]

約数ペア:

[(1, 128537307), (3, 42845769), (9, 14281923), (27, 4760641), (239, 537813), (717, 179271), (2151, 59757), (6453, 19919)]