20765216

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{15091}}^1$

素因数の和:15144

約数の個数: 24

約数和(自身を含む): 41835024

約数和(自身を除く): 21069808

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 15091, 30182, 60364, 120728, 241456, 482912, 648913, 1297826, 2595652, 5191304, 10382608, 20765216]

約数ペア:

[(1, 20765216), (2, 10382608), (4, 5191304), (8, 2595652), (16, 1297826), (32, 648913), (43, 482912), (86, 241456), (172, 120728), (344, 60364), (688, 30182), (1376, 15091)]