18887661

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{1993}}^1$

素因数の和:2024

約数の個数: 28

約数和(自身を含む): 30512188

約数和(自身を除く): 11624527

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 1993, 3159, 5979, 9477, 17937, 25909, 53811, 77727, 161433, 233181, 484299, 699543, 1452897, 2098629, 6295887, 18887661]

約数ペア:

[(1, 18887661), (3, 6295887), (9, 2098629), (13, 1452897), (27, 699543), (39, 484299), (81, 233181), (117, 161433), (243, 77727), (351, 53811), (729, 25909), (1053, 17937), (1993, 9477), (3159, 5979)]