2157808

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{859}}^1$

素因数の和:1024

約数の個数: 20

約数和(自身を含む): 4212280

約数和(自身を除く): 2054472

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 859, 1256, 1718, 2512, 3436, 6872, 13744, 134863, 269726, 539452, 1078904, 2157808]

約数ペア:

[(1, 2157808), (2, 1078904), (4, 539452), (8, 269726), (16, 134863), (157, 13744), (314, 6872), (628, 3436), (859, 2512), (1256, 1718)]