128769987

素因数分解:

$3^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{2087}}^1$

素因数の和:2378

約数の個数: 16

約数和(自身を含む): 174189312

約数和(自身を除く): 45419325

約数列:

[1, 3, 131, 157, 393, 471, 2087, 6261, 20567, 61701, 273397, 327659, 820191, 982977, 42923329, 128769987]

約数ペア:

[(1, 128769987), (3, 42923329), (131, 982977), (157, 820191), (393, 327659), (471, 273397), (2087, 61701), (6261, 20567)]