20789538

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2647}}^1$

素因数の和:2687

約数の個数: 64

約数和(自身を含む): 54908928

約数和(自身を除く): 34119390

約数列:

[1, 2, 3, 6, 7, 11, 14, 17, 21, 22, 33, 34, 42, 51, 66, 77, 102, 119, 154, 187, 231, 238, 357, 374, 462, 561, 714, 1122, 1309, 2618, 2647, 3927, 5294, 7854, 7941, 15882, 18529, 29117, 37058, 44999, 55587, 58234, 87351, 89998, 111174, 134997, 174702, 203819, 269994, 314993, 407638, 494989, 611457, 629986, 944979, 989978, 1222914, 1484967, 1889958, 2969934, 3464923, 6929846, 10394769, 20789538]

約数ペア:

[(1, 20789538), (2, 10394769), (3, 6929846), (6, 3464923), (7, 2969934), (11, 1889958), (14, 1484967), (17, 1222914), (21, 989978), (22, 944979), (33, 629986), (34, 611457), (42, 494989), (51, 407638), (66, 314993), (77, 269994), (102, 203819), (119, 174702), (154, 134997), (187, 111174), (231, 89998), (238, 87351), (357, 58234), (374, 55587), (462, 44999), (561, 37058), (714, 29117), (1122, 18529), (1309, 15882), (2618, 7941), (2647, 7854), (3927, 5294)]