21871212

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{2473}}^1$

素因数の和:2558

約数の個数: 48

約数和(自身を含む): 56525952

約数和(自身を除く): 34654740

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 67, 132, 134, 201, 268, 402, 737, 804, 1474, 2211, 2473, 2948, 4422, 4946, 7419, 8844, 9892, 14838, 27203, 29676, 54406, 81609, 108812, 163218, 165691, 326436, 331382, 497073, 662764, 994146, 1822601, 1988292, 3645202, 5467803, 7290404, 10935606, 21871212]

約数ペア:

[(1, 21871212), (2, 10935606), (3, 7290404), (4, 5467803), (6, 3645202), (11, 1988292), (12, 1822601), (22, 994146), (33, 662764), (44, 497073), (66, 331382), (67, 326436), (132, 165691), (134, 163218), (201, 108812), (268, 81609), (402, 54406), (737, 29676), (804, 27203), (1474, 14838), (2211, 9892), (2473, 8844), (2948, 7419), (4422, 4946)]