251019081

素因数分解:

$3^4\times {\mathrm{193}}^1\times {\mathrm{16057}}^1$

素因数の和:16262

約数の個数: 20

約数和(自身を含む): 376945492

約数和(自身を除く): 125926411

約数列:

[1, 3, 9, 27, 81, 193, 579, 1737, 5211, 15633, 16057, 48171, 144513, 433539, 1300617, 3099001, 9297003, 27891009, 83673027, 251019081]

約数ペア:

[(1, 251019081), (3, 83673027), (9, 27891009), (27, 9297003), (81, 3099001), (193, 1300617), (579, 433539), (1737, 144513), (5211, 48171), (15633, 16057)]