12886928

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{18731}}^1$

素因数の和:18782

約数の個数: 20

約数和(自身を含む): 25550448

約数和(自身を除く): 12663520

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 18731, 37462, 74924, 149848, 299696, 805433, 1610866, 3221732, 6443464, 12886928]

約数ペア:

[(1, 12886928), (2, 6443464), (4, 3221732), (8, 1610866), (16, 805433), (43, 299696), (86, 149848), (172, 74924), (344, 37462), (688, 18731)]