12681249

素因数分解:

$3^1\times 7^2\times {\mathrm{281}}^1\times {\mathrm{307}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 19803168

約数和(自身を除く): 7121919

約数列:

[1, 3, 7, 21, 49, 147, 281, 307, 843, 921, 1967, 2149, 5901, 6447, 13769, 15043, 41307, 45129, 86267, 258801, 603869, 1811607, 4227083, 12681249]

約数ペア:

[(1, 12681249), (3, 4227083), (7, 1811607), (21, 603869), (49, 258801), (147, 86267), (281, 45129), (307, 41307), (843, 15043), (921, 13769), (1967, 6447), (2149, 5901)]