787658877

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{641}}^2$

素因数の和:1362

約数の個数: 24

約数和(自身を含む): 1185186240

約数和(自身を除く): 397527363

約数列:

[1, 3, 9, 27, 71, 213, 639, 641, 1917, 1923, 5769, 17307, 45511, 136533, 409599, 410881, 1228797, 1232643, 3697929, 11093787, 29172551, 87517653, 262552959, 787658877]

約数ペア:

[(1, 787658877), (3, 262552959), (9, 87517653), (27, 29172551), (71, 11093787), (213, 3697929), (639, 1232643), (641, 1228797), (1917, 410881), (1923, 409599), (5769, 136533), (17307, 45511)]