21011892

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:557

約数の個数: 72

約数和(自身を含む): 55860000

約数和(自身を除く): 34848108

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 29, 33, 44, 58, 66, 87, 116, 121, 132, 174, 242, 319, 348, 363, 484, 499, 638, 726, 957, 998, 1276, 1452, 1497, 1914, 1996, 2994, 3509, 3828, 5489, 5988, 7018, 10527, 10978, 14036, 14471, 16467, 21054, 21956, 28942, 32934, 42108, 43413, 57884, 60379, 65868, 86826, 120758, 159181, 173652, 181137, 241516, 318362, 362274, 477543, 636724, 724548, 955086, 1750991, 1910172, 3501982, 5252973, 7003964, 10505946, 21011892]

約数ペア:

[(1, 21011892), (2, 10505946), (3, 7003964), (4, 5252973), (6, 3501982), (11, 1910172), (12, 1750991), (22, 955086), (29, 724548), (33, 636724), (44, 477543), (58, 362274), (66, 318362), (87, 241516), (116, 181137), (121, 173652), (132, 159181), (174, 120758), (242, 86826), (319, 65868), (348, 60379), (363, 57884), (484, 43413), (499, 42108), (638, 32934), (726, 28942), (957, 21956), (998, 21054), (1276, 16467), (1452, 14471), (1497, 14036), (1914, 10978), (1996, 10527), (2994, 7018), (3509, 5988), (3828, 5489)]