21000618148

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{719}}^1\times {\mathrm{384317}}^1$

素因数の和:385059

約数の個数: 24

約数和(自身を含む): 38739254400

約数和(自身を除く): 17738636252

約数列:

[1, 2, 4, 19, 38, 76, 719, 1438, 2876, 13661, 27322, 54644, 384317, 768634, 1537268, 7302023, 14604046, 29208092, 276323923, 552647846, 1105295692, 5250154537, 10500309074, 21000618148]

約数ペア:

[(1, 21000618148), (2, 10500309074), (4, 5250154537), (19, 1105295692), (38, 552647846), (76, 276323923), (719, 29208092), (1438, 14604046), (2876, 7302023), (13661, 1537268), (27322, 768634), (54644, 384317)]