21541856

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{5657}}^1$

素因数の和:5691

約数の個数: 48

約数和(自身を含む): 51329376

約数和(自身を除く): 29787520

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 68, 112, 119, 136, 224, 238, 272, 476, 544, 952, 1904, 3808, 5657, 11314, 22628, 39599, 45256, 79198, 90512, 96169, 158396, 181024, 192338, 316792, 384676, 633584, 673183, 769352, 1267168, 1346366, 1538704, 2692732, 3077408, 5385464, 10770928, 21541856]

約数ペア:

[(1, 21541856), (2, 10770928), (4, 5385464), (7, 3077408), (8, 2692732), (14, 1538704), (16, 1346366), (17, 1267168), (28, 769352), (32, 673183), (34, 633584), (56, 384676), (68, 316792), (112, 192338), (119, 181024), (136, 158396), (224, 96169), (238, 90512), (272, 79198), (476, 45256), (544, 39599), (952, 22628), (1904, 11314), (3808, 5657)]