7974981

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1229}}^1$

素因数の和:1345

約数の個数: 24

約数和(自身を含む): 13303680

約数和(自身を除く): 5328699

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 1229, 2163, 3687, 6489, 8603, 11061, 25809, 77427, 126587, 379761, 886109, 1139283, 2658327, 7974981]

約数ペア:

[(1, 7974981), (3, 2658327), (7, 1139283), (9, 886109), (21, 379761), (63, 126587), (103, 77427), (309, 25809), (721, 11061), (927, 8603), (1229, 6489), (2163, 3687)]