21997504

素因数分解:

$2^6\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:233

約数の個数: 56

約数和(自身を含む): 45646848

約数和(自身を除く): 23649344

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 71, 94, 103, 142, 188, 206, 284, 376, 412, 568, 752, 824, 1136, 1504, 1648, 2272, 3008, 3296, 3337, 4544, 4841, 6592, 6674, 7313, 9682, 13348, 14626, 19364, 26696, 29252, 38728, 53392, 58504, 77456, 106784, 117008, 154912, 213568, 234016, 309824, 343711, 468032, 687422, 1374844, 2749688, 5499376, 10998752, 21997504]

約数ペア:

[(1, 21997504), (2, 10998752), (4, 5499376), (8, 2749688), (16, 1374844), (32, 687422), (47, 468032), (64, 343711), (71, 309824), (94, 234016), (103, 213568), (142, 154912), (188, 117008), (206, 106784), (284, 77456), (376, 58504), (412, 53392), (568, 38728), (752, 29252), (824, 26696), (1136, 19364), (1504, 14626), (1648, 13348), (2272, 9682), (3008, 7313), (3296, 6674), (3337, 6592), (4544, 4841)]