21705464

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{1319}}^1$

素因数の和:1364

約数の個数: 48

約数和(自身を含む): 47401200

約数和(自身を除く): 25695736

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 121, 136, 187, 242, 374, 484, 748, 968, 1319, 1496, 2057, 2638, 4114, 5276, 8228, 10552, 14509, 16456, 22423, 29018, 44846, 58036, 89692, 116072, 159599, 179384, 246653, 319198, 493306, 638396, 986612, 1276792, 1973224, 2713183, 5426366, 10852732, 21705464]

約数ペア:

[(1, 21705464), (2, 10852732), (4, 5426366), (8, 2713183), (11, 1973224), (17, 1276792), (22, 986612), (34, 638396), (44, 493306), (68, 319198), (88, 246653), (121, 179384), (136, 159599), (187, 116072), (242, 89692), (374, 58036), (484, 44846), (748, 29018), (968, 22423), (1319, 16456), (1496, 14509), (2057, 10552), (2638, 8228), (4114, 5276)]