18789027838

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{685781}}^1$

素因数の和:685912

約数の個数: 32

約数和(自身を含む): 34234237440

約数和(自身を除く): 15445209602

約数列:

[1, 2, 7, 14, 19, 38, 103, 133, 206, 266, 721, 1442, 1957, 3914, 13699, 27398, 685781, 1371562, 4800467, 9600934, 13029839, 26059678, 70635443, 91208873, 141270886, 182417746, 494448101, 988896202, 1342073417, 2684146834, 9394513919, 18789027838]

約数ペア:

[(1, 18789027838), (2, 9394513919), (7, 2684146834), (14, 1342073417), (19, 988896202), (38, 494448101), (103, 182417746), (133, 141270886), (206, 91208873), (266, 70635443), (721, 26059678), (1442, 13029839), (1957, 9600934), (3914, 4800467), (13699, 1371562), (27398, 685781)]