18999458

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{1997}}^1$

素因数の和:2137

約数の個数: 16

約数和(自身を含む): 29346624

約数和(自身を除く): 10347166

約数列:

[1, 2, 67, 71, 134, 142, 1997, 3994, 4757, 9514, 133799, 141787, 267598, 283574, 9499729, 18999458]

約数ペア:

[(1, 18999458), (2, 9499729), (67, 283574), (71, 267598), (134, 141787), (142, 133799), (1997, 9514), (3994, 4757)]