21526252

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 22019348

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 89, 92, 178, 239, 253, 356, 478, 506, 956, 979, 1012, 1958, 2047, 2629, 3916, 4094, 5258, 5497, 8188, 10516, 10994, 21271, 21988, 22517, 42542, 45034, 60467, 85084, 90068, 120934, 233981, 241868, 467962, 489233, 935924, 978466, 1956932, 5381563, 10763126, 21526252]

約数ペア:

[(1, 21526252), (2, 10763126), (4, 5381563), (11, 1956932), (22, 978466), (23, 935924), (44, 489233), (46, 467962), (89, 241868), (92, 233981), (178, 120934), (239, 90068), (253, 85084), (356, 60467), (478, 45034), (506, 42542), (956, 22517), (979, 21988), (1012, 21271), (1958, 10994), (2047, 10516), (2629, 8188), (3916, 5497), (4094, 5258)]