26721136

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{128467}}^1$

素因数の和:128488

約数の個数: 20

約数和(自身を含む): 55755112

約数和(自身を除く): 29033976

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 128467, 256934, 513868, 1027736, 1670071, 2055472, 3340142, 6680284, 13360568, 26721136]

約数ペア:

[(1, 26721136), (2, 13360568), (4, 6680284), (8, 3340142), (13, 2055472), (16, 1670071), (26, 1027736), (52, 513868), (104, 256934), (208, 128467)]