18480826

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:215

約数の個数: 48

約数和(自身を含む): 35100864

約数和(自身を除く): 16620038

約数列:

[1, 2, 7, 13, 14, 26, 73, 91, 107, 146, 169, 182, 214, 338, 511, 749, 949, 1022, 1183, 1391, 1498, 1898, 2366, 2782, 6643, 7811, 9737, 12337, 13286, 15622, 18083, 19474, 24674, 36166, 54677, 86359, 101543, 109354, 126581, 172718, 203086, 253162, 710801, 1320059, 1421602, 2640118, 9240413, 18480826]

約数ペア:

[(1, 18480826), (2, 9240413), (7, 2640118), (13, 1421602), (14, 1320059), (26, 710801), (73, 253162), (91, 203086), (107, 172718), (146, 126581), (169, 109354), (182, 101543), (214, 86359), (338, 54677), (511, 36166), (749, 24674), (949, 19474), (1022, 18083), (1183, 15622), (1391, 13286), (1498, 12337), (1898, 9737), (2366, 7811), (2782, 6643)]