18979214

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:408

約数の個数: 24

約数和(自身を含む): 30467808

約数和(自身を除く): 11488594

約数列:

[1, 2, 19, 38, 97, 194, 271, 361, 542, 722, 1843, 3686, 5149, 10298, 26287, 35017, 52574, 70034, 97831, 195662, 499453, 998906, 9489607, 18979214]

約数ペア:

[(1, 18979214), (2, 9489607), (19, 998906), (38, 499453), (97, 195662), (194, 97831), (271, 70034), (361, 52574), (542, 35017), (722, 26287), (1843, 10298), (3686, 5149)]