17478972

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:655

約数の個数: 72

約数和(自身を含む): 50960000

約数和(自身を除く): 33481028

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 139, 252, 278, 417, 499, 556, 834, 973, 998, 1251, 1497, 1668, 1946, 1996, 2502, 2919, 2994, 3493, 3892, 4491, 5004, 5838, 5988, 6986, 8757, 8982, 10479, 11676, 13972, 17514, 17964, 20958, 31437, 35028, 41916, 62874, 69361, 125748, 138722, 208083, 277444, 416166, 485527, 624249, 832332, 971054, 1248498, 1456581, 1942108, 2496996, 2913162, 4369743, 5826324, 8739486, 17478972]

約数ペア:

[(1, 17478972), (2, 8739486), (3, 5826324), (4, 4369743), (6, 2913162), (7, 2496996), (9, 1942108), (12, 1456581), (14, 1248498), (18, 971054), (21, 832332), (28, 624249), (36, 485527), (42, 416166), (63, 277444), (84, 208083), (126, 138722), (139, 125748), (252, 69361), (278, 62874), (417, 41916), (499, 35028), (556, 31437), (834, 20958), (973, 17964), (998, 17514), (1251, 13972), (1497, 11676), (1668, 10479), (1946, 8982), (1996, 8757), (2502, 6986), (2919, 5988), (2994, 5838), (3493, 5004), (3892, 4491)]