21000547701

素因数分解:

$3^5\times 7^1\times {\mathrm{83}}^1\times {\mathrm{148747}}^1$

素因数の和:148852

約数の個数: 48

約数和(自身を含む): 36384950784

約数和(自身を除く): 15384403083

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 83, 189, 243, 249, 567, 581, 747, 1701, 1743, 2241, 5229, 6723, 15687, 20169, 47061, 141183, 148747, 446241, 1041229, 1338723, 3123687, 4016169, 9371061, 12048507, 12346001, 28113183, 36145521, 37038003, 84339549, 86422007, 111114009, 253018647, 259266021, 333342027, 777798063, 1000026081, 2333394189, 3000078243, 7000182567, 21000547701]

約数ペア:

[(1, 21000547701), (3, 7000182567), (7, 3000078243), (9, 2333394189), (21, 1000026081), (27, 777798063), (63, 333342027), (81, 259266021), (83, 253018647), (189, 111114009), (243, 86422007), (249, 84339549), (567, 37038003), (581, 36145521), (747, 28113183), (1701, 12346001), (1743, 12048507), (2241, 9371061), (5229, 4016169), (6723, 3123687), (15687, 1338723), (20169, 1041229), (47061, 446241), (141183, 148747)]