21220812

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^1\times {\mathrm{8543}}^1$

素因数の和:8579

約数の個数: 48

約数和(自身を含む): 57415680

約数和(自身を除く): 36194868

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 92, 108, 138, 207, 276, 414, 621, 828, 1242, 2484, 8543, 17086, 25629, 34172, 51258, 76887, 102516, 153774, 196489, 230661, 307548, 392978, 461322, 589467, 785956, 922644, 1178934, 1768401, 2357868, 3536802, 5305203, 7073604, 10610406, 21220812]

約数ペア:

[(1, 21220812), (2, 10610406), (3, 7073604), (4, 5305203), (6, 3536802), (9, 2357868), (12, 1768401), (18, 1178934), (23, 922644), (27, 785956), (36, 589467), (46, 461322), (54, 392978), (69, 307548), (92, 230661), (108, 196489), (138, 153774), (207, 102516), (276, 76887), (414, 51258), (621, 34172), (828, 25629), (1242, 17086), (2484, 8543)]