19878474

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2531}}^1$

素因数の和:2571

約数の個数: 64

約数和(自身を含む): 52503552

約数和(自身を除く): 32625078

約数列:

[1, 2, 3, 6, 7, 11, 14, 17, 21, 22, 33, 34, 42, 51, 66, 77, 102, 119, 154, 187, 231, 238, 357, 374, 462, 561, 714, 1122, 1309, 2531, 2618, 3927, 5062, 7593, 7854, 15186, 17717, 27841, 35434, 43027, 53151, 55682, 83523, 86054, 106302, 129081, 167046, 194887, 258162, 301189, 389774, 473297, 584661, 602378, 903567, 946594, 1169322, 1419891, 1807134, 2839782, 3313079, 6626158, 9939237, 19878474]

約数ペア:

[(1, 19878474), (2, 9939237), (3, 6626158), (6, 3313079), (7, 2839782), (11, 1807134), (14, 1419891), (17, 1169322), (21, 946594), (22, 903567), (33, 602378), (34, 584661), (42, 473297), (51, 389774), (66, 301189), (77, 258162), (102, 194887), (119, 167046), (154, 129081), (187, 106302), (231, 86054), (238, 83523), (357, 55682), (374, 53151), (462, 43027), (561, 35434), (714, 27841), (1122, 17717), (1309, 15186), (2531, 7854), (2618, 7593), (3927, 5062)]