20617686

素因数分解:

$2^1\times 3^3\times {\mathrm{191}}^1\times {\mathrm{1999}}^1$

素因数の和:2201

約数の個数: 32

約数和(自身を含む): 46080000

約数和(自身を除く): 25462314

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 191, 382, 573, 1146, 1719, 1999, 3438, 3998, 5157, 5997, 10314, 11994, 17991, 35982, 53973, 107946, 381809, 763618, 1145427, 2290854, 3436281, 6872562, 10308843, 20617686]

約数ペア:

[(1, 20617686), (2, 10308843), (3, 6872562), (6, 3436281), (9, 2290854), (18, 1145427), (27, 763618), (54, 381809), (191, 107946), (382, 53973), (573, 35982), (1146, 17991), (1719, 11994), (1999, 10314), (3438, 5997), (3998, 5157)]