17778840741

素因数分解:

$3^4\times {\mathrm{641}}^1\times {\mathrm{342421}}^1$

素因数の和:343074

約数の個数: 20

約数和(自身を含む): 26600025804

約数和(自身を除く): 8821185063

約数列:

[1, 3, 9, 27, 81, 641, 1923, 5769, 17307, 51921, 342421, 1027263, 3081789, 9245367, 27736101, 219491861, 658475583, 1975426749, 5926280247, 17778840741]

約数ペア:

[(1, 17778840741), (3, 5926280247), (9, 1975426749), (27, 658475583), (81, 219491861), (641, 27736101), (1923, 9245367), (5769, 3081789), (17307, 1027263), (51921, 342421)]