18715884

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1997}}^1$

素因数の和:2086

約数の個数: 48

約数和(自身を含む): 48335616

約数和(自身を除く): 29619732

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 71, 132, 142, 213, 284, 426, 781, 852, 1562, 1997, 2343, 3124, 3994, 4686, 5991, 7988, 9372, 11982, 21967, 23964, 43934, 65901, 87868, 131802, 141787, 263604, 283574, 425361, 567148, 850722, 1559657, 1701444, 3119314, 4678971, 6238628, 9357942, 18715884]

約数ペア:

[(1, 18715884), (2, 9357942), (3, 6238628), (4, 4678971), (6, 3119314), (11, 1701444), (12, 1559657), (22, 850722), (33, 567148), (44, 425361), (66, 283574), (71, 263604), (132, 141787), (142, 131802), (213, 87868), (284, 65901), (426, 43934), (781, 23964), (852, 21967), (1562, 11982), (1997, 9372), (2343, 7988), (3124, 5991), (3994, 4686)]