20921934

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{643}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 29155506

約数列:

[1, 2, 3, 6, 11, 17, 22, 29, 33, 34, 51, 58, 66, 87, 102, 174, 187, 319, 374, 493, 561, 638, 643, 957, 986, 1122, 1286, 1479, 1914, 1929, 2958, 3858, 5423, 7073, 10846, 10931, 14146, 16269, 18647, 21219, 21862, 32538, 32793, 37294, 42438, 55941, 65586, 111882, 120241, 205117, 240482, 316999, 360723, 410234, 615351, 633998, 721446, 950997, 1230702, 1901994, 3486989, 6973978, 10460967, 20921934]

約数ペア:

[(1, 20921934), (2, 10460967), (3, 6973978), (6, 3486989), (11, 1901994), (17, 1230702), (22, 950997), (29, 721446), (33, 633998), (34, 615351), (51, 410234), (58, 360723), (66, 316999), (87, 240482), (102, 205117), (174, 120241), (187, 111882), (319, 65586), (374, 55941), (493, 42438), (561, 37294), (638, 32793), (643, 32538), (957, 21862), (986, 21219), (1122, 18647), (1286, 16269), (1479, 14146), (1914, 10931), (1929, 10846), (2958, 7073), (3858, 5423)]