128518893

素因数分解:

$3^4\times {\mathrm{193}}^1\times {\mathrm{8221}}^1$

素因数の和:8426

約数の個数: 20

約数和(自身を含む): 193003228

約数和(自身を除く): 64484335

約数列:

[1, 3, 9, 27, 81, 193, 579, 1737, 5211, 8221, 15633, 24663, 73989, 221967, 665901, 1586653, 4759959, 14279877, 42839631, 128518893]

約数ペア:

[(1, 128518893), (3, 42839631), (9, 14279877), (27, 4759959), (81, 1586653), (193, 665901), (579, 221967), (1737, 73989), (5211, 24663), (8221, 15633)]