21000643254

素因数分解:

$2^1\times 3^3\times {\mathrm{59}}^2\times {\mathrm{111721}}^1$

素因数の和:111850

約数の個数: 48

約数和(自身を含む): 47472912240

約数和(自身を除く): 26472268986

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 59, 118, 177, 354, 531, 1062, 1593, 3186, 3481, 6962, 10443, 20886, 31329, 62658, 93987, 111721, 187974, 223442, 335163, 670326, 1005489, 2010978, 3016467, 6032934, 6591539, 13183078, 19774617, 39549234, 59323851, 118647702, 177971553, 355943106, 388900801, 777801602, 1166702403, 2333404806, 3500107209, 7000214418, 10500321627, 21000643254]

約数ペア:

[(1, 21000643254), (2, 10500321627), (3, 7000214418), (6, 3500107209), (9, 2333404806), (18, 1166702403), (27, 777801602), (54, 388900801), (59, 355943106), (118, 177971553), (177, 118647702), (354, 59323851), (531, 39549234), (1062, 19774617), (1593, 13183078), (3186, 6591539), (3481, 6032934), (6962, 3016467), (10443, 2010978), (20886, 1005489), (31329, 670326), (62658, 335163), (93987, 223442), (111721, 187974)]