20809914832

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2616941}}^1$

素因数の和:2617027

約数の個数: 40

約数和(自身を含む): 46728116352

約数和(自身を除く): 25918201520

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 994, 1136, 1988, 3976, 7952, 2616941, 5233882, 10467764, 18318587, 20935528, 36637174, 41871056, 73274348, 146548696, 185802811, 293097392, 371605622, 743211244, 1300619677, 1486422488, 2601239354, 2972844976, 5202478708, 10404957416, 20809914832]

約数ペア:

[(1, 20809914832), (2, 10404957416), (4, 5202478708), (7, 2972844976), (8, 2601239354), (14, 1486422488), (16, 1300619677), (28, 743211244), (56, 371605622), (71, 293097392), (112, 185802811), (142, 146548696), (284, 73274348), (497, 41871056), (568, 36637174), (994, 20935528), (1136, 18318587), (1988, 10467764), (3976, 5233882), (7952, 2616941)]