20171213872

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{569}}^1\times {\mathrm{20327}}^1$

素因数の和:21013

約数の個数: 40

約数和(自身を含む): 39511533600

約数和(自身を除く): 19340319728

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 569, 872, 1138, 1744, 2276, 4552, 9104, 20327, 40654, 62021, 81308, 124042, 162616, 248084, 325232, 496168, 992336, 2215643, 4431286, 8862572, 11566063, 17725144, 23132126, 35450288, 46264252, 92528504, 185057008, 1260700867, 2521401734, 5042803468, 10085606936, 20171213872]

約数ペア:

[(1, 20171213872), (2, 10085606936), (4, 5042803468), (8, 2521401734), (16, 1260700867), (109, 185057008), (218, 92528504), (436, 46264252), (569, 35450288), (872, 23132126), (1138, 17725144), (1744, 11566063), (2276, 8862572), (4552, 4431286), (9104, 2215643), (20327, 992336), (40654, 496168), (62021, 325232), (81308, 248084), (124042, 162616)]