12120395

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{811}}^1$

素因数の和:891

約数の個数: 24

約数和(自身を含む): 17217648

約数和(自身を除く): 5097253

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 427, 811, 2135, 2989, 4055, 5677, 14945, 28385, 39739, 49471, 198695, 247355, 346297, 1731485, 2424079, 12120395]

約数ペア:

[(1, 12120395), (5, 2424079), (7, 1731485), (35, 346297), (49, 247355), (61, 198695), (245, 49471), (305, 39739), (427, 28385), (811, 14945), (2135, 5677), (2989, 4055)]