20689306

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:195

約数の個数: 48

約数和(自身を含む): 37231488

約数和(自身を除く): 16542182

約数列:

[1, 2, 11, 17, 22, 34, 47, 94, 107, 121, 187, 214, 242, 374, 517, 799, 1034, 1177, 1598, 1819, 2057, 2354, 3638, 4114, 5029, 5687, 8789, 10058, 11374, 12947, 17578, 20009, 25894, 40018, 55319, 85493, 96679, 110638, 170986, 193358, 220099, 440198, 608509, 940423, 1217018, 1880846, 10344653, 20689306]

約数ペア:

[(1, 20689306), (2, 10344653), (11, 1880846), (17, 1217018), (22, 940423), (34, 608509), (47, 440198), (94, 220099), (107, 193358), (121, 170986), (187, 110638), (214, 96679), (242, 85493), (374, 55319), (517, 40018), (799, 25894), (1034, 20009), (1177, 17578), (1598, 12947), (1819, 11374), (2057, 10058), (2354, 8789), (3638, 5687), (4114, 5029)]