218362557

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{3061}}^1$

素因数の和:3193

約数の個数: 32

約数和(自身を含む): 344903680

約数和(自身を除く): 126541123

約数列:

[1, 3, 7, 21, 43, 79, 129, 237, 301, 553, 903, 1659, 3061, 3397, 9183, 10191, 21427, 23779, 64281, 71337, 131623, 241819, 394869, 725457, 921361, 1692733, 2764083, 5078199, 10398217, 31194651, 72787519, 218362557]

約数ペア:

[(1, 218362557), (3, 72787519), (7, 31194651), (21, 10398217), (43, 5078199), (79, 2764083), (129, 1692733), (237, 921361), (301, 725457), (553, 394869), (903, 241819), (1659, 131623), (3061, 71337), (3397, 64281), (9183, 23779), (10191, 21427)]