42456879

素因数分解:

$3^4\times {\mathrm{263}}^1\times {\mathrm{1993}}^1$

素因数の和:2268

約数の個数: 20

約数和(自身を含む): 63696336

約数和(自身を除く): 21239457

約数列:

[1, 3, 9, 27, 81, 263, 789, 1993, 2367, 5979, 7101, 17937, 21303, 53811, 161433, 524159, 1572477, 4717431, 14152293, 42456879]

約数ペア:

[(1, 42456879), (3, 14152293), (9, 4717431), (27, 1572477), (81, 524159), (263, 161433), (789, 53811), (1993, 21303), (2367, 17937), (5979, 7101)]