21228678

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1091}}^1$

素因数の和:1169

約数の個数: 48

約数和(自身を含む): 49061376

約数和(自身を除く): 27832698

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 47, 69, 94, 138, 141, 207, 282, 414, 423, 846, 1081, 1091, 2162, 2182, 3243, 3273, 6486, 6546, 9729, 9819, 19458, 19638, 25093, 50186, 51277, 75279, 102554, 150558, 153831, 225837, 307662, 451674, 461493, 922986, 1179371, 2358742, 3538113, 7076226, 10614339, 21228678]

約数ペア:

[(1, 21228678), (2, 10614339), (3, 7076226), (6, 3538113), (9, 2358742), (18, 1179371), (23, 922986), (46, 461493), (47, 451674), (69, 307662), (94, 225837), (138, 153831), (141, 150558), (207, 102554), (282, 75279), (414, 51277), (423, 50186), (846, 25093), (1081, 19638), (1091, 19458), (2162, 9819), (2182, 9729), (3243, 6546), (3273, 6486)]