19992086

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{2539}}^1$

素因数の和:2699

約数の個数: 16

約数和(自身を含む): 31211520

約数和(自身を除く): 11219434

約数列:

[1, 2, 31, 62, 127, 254, 2539, 3937, 5078, 7874, 78709, 157418, 322453, 644906, 9996043, 19992086]

約数ペア:

[(1, 19992086), (2, 9996043), (31, 644906), (62, 322453), (127, 157418), (254, 78709), (2539, 7874), (3937, 5078)]