18728307

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{233}}^1$

素因数の和:484

約数の個数: 32

約数和(自身を含む): 30139200

約数和(自身を除く): 11410893

約数列:

[1, 3, 9, 13, 27, 39, 117, 229, 233, 351, 687, 699, 2061, 2097, 2977, 3029, 6183, 6291, 8931, 9087, 26793, 27261, 53357, 80379, 81783, 160071, 480213, 693641, 1440639, 2080923, 6242769, 18728307]

約数ペア:

[(1, 18728307), (3, 6242769), (9, 2080923), (13, 1440639), (27, 693641), (39, 480213), (117, 160071), (229, 81783), (233, 80379), (351, 53357), (687, 27261), (699, 26793), (2061, 9087), (2097, 8931), (2977, 6291), (3029, 6183)]