21828884

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{379}}^1$

素因数の和:429

約数の個数: 72

約数和(自身を含む): 50944320

約数和(自身を除く): 29115436

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 68, 77, 119, 121, 154, 187, 238, 242, 308, 374, 379, 476, 484, 748, 758, 847, 1309, 1516, 1694, 2057, 2618, 2653, 3388, 4114, 4169, 5236, 5306, 6443, 8228, 8338, 10612, 12886, 14399, 16676, 25772, 28798, 29183, 45101, 45859, 57596, 58366, 70873, 90202, 91718, 116732, 141746, 180404, 183436, 283492, 321013, 496111, 642026, 779603, 992222, 1284052, 1559206, 1984444, 3118412, 5457221, 10914442, 21828884]

約数ペア:

[(1, 21828884), (2, 10914442), (4, 5457221), (7, 3118412), (11, 1984444), (14, 1559206), (17, 1284052), (22, 992222), (28, 779603), (34, 642026), (44, 496111), (68, 321013), (77, 283492), (119, 183436), (121, 180404), (154, 141746), (187, 116732), (238, 91718), (242, 90202), (308, 70873), (374, 58366), (379, 57596), (476, 45859), (484, 45101), (748, 29183), (758, 28798), (847, 25772), (1309, 16676), (1516, 14399), (1694, 12886), (2057, 10612), (2618, 8338), (2653, 8228), (3388, 6443), (4114, 5306), (4169, 5236)]