19807902

素因数分解:

$2^1\times 3^5\times {\mathrm{53}}^1\times {\mathrm{769}}^1$

素因数の和:839

約数の個数: 48

約数和(自身を含む): 45405360

約数和(自身を除く): 25597458

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 81, 106, 159, 162, 243, 318, 477, 486, 769, 954, 1431, 1538, 2307, 2862, 4293, 4614, 6921, 8586, 12879, 13842, 20763, 25758, 40757, 41526, 62289, 81514, 122271, 124578, 186867, 244542, 366813, 373734, 733626, 1100439, 2200878, 3301317, 6602634, 9903951, 19807902]

約数ペア:

[(1, 19807902), (2, 9903951), (3, 6602634), (6, 3301317), (9, 2200878), (18, 1100439), (27, 733626), (53, 373734), (54, 366813), (81, 244542), (106, 186867), (159, 124578), (162, 122271), (243, 81514), (318, 62289), (477, 41526), (486, 40757), (769, 25758), (954, 20763), (1431, 13842), (1538, 12879), (2307, 8586), (2862, 6921), (4293, 4614)]