19913086

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:276

約数の個数: 32

約数和(自身を含む): 32799168

約数和(自身を除く): 12886082

約数列:

[1, 2, 17, 34, 71, 73, 113, 142, 146, 226, 1207, 1241, 1921, 2414, 2482, 3842, 5183, 8023, 8249, 10366, 16046, 16498, 88111, 136391, 140233, 176222, 272782, 280466, 585679, 1171358, 9956543, 19913086]

約数ペア:

[(1, 19913086), (2, 9956543), (17, 1171358), (34, 585679), (71, 280466), (73, 272782), (113, 176222), (142, 140233), (146, 136391), (226, 88111), (1207, 16498), (1241, 16046), (1921, 10366), (2414, 8249), (2482, 8023), (3842, 5183)]