66856816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{321427}}^1$

素因数の和:321448

約数の個数: 20

約数和(自身を含む): 139499752

約数和(自身を除く): 72642936

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 321427, 642854, 1285708, 2571416, 4178551, 5142832, 8357102, 16714204, 33428408, 66856816]

約数ペア:

[(1, 66856816), (2, 33428408), (4, 16714204), (8, 8357102), (13, 5142832), (16, 4178551), (26, 2571416), (52, 1285708), (104, 642854), (208, 321427)]