12139445

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:341

約数の個数: 24

約数和(自身を含む): 16032768

約数和(自身を除く): 3893323

約数列:

[1, 5, 17, 31, 85, 155, 271, 289, 527, 1355, 1445, 2635, 4607, 8401, 8959, 23035, 42005, 44795, 78319, 142817, 391595, 714085, 2427889, 12139445]

約数ペア:

[(1, 12139445), (5, 2427889), (17, 714085), (31, 391595), (85, 142817), (155, 78319), (271, 44795), (289, 42005), (527, 23035), (1355, 8959), (1445, 8401), (2635, 4607)]