18990956

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{249881}}^1$

素因数の和:249904

約数の個数: 12

約数和(自身を含む): 34983480

約数和(自身を除く): 15992524

約数列:

[1, 2, 4, 19, 38, 76, 249881, 499762, 999524, 4747739, 9495478, 18990956]

約数ペア:

[(1, 18990956), (2, 9495478), (4, 4747739), (19, 999524), (38, 499762), (76, 249881)]