20789912

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1069}}^1$

素因数の和:1116

約数の個数: 64

約数和(自身を含む): 48535200

約数和(自身を除く): 27745288

約数列:

[1, 2, 4, 8, 11, 13, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 187, 221, 286, 374, 442, 572, 748, 884, 1069, 1144, 1496, 1768, 2138, 2431, 4276, 4862, 8552, 9724, 11759, 13897, 18173, 19448, 23518, 27794, 36346, 47036, 55588, 72692, 94072, 111176, 145384, 152867, 199903, 236249, 305734, 399806, 472498, 611468, 799612, 944996, 1222936, 1599224, 1889992, 2598739, 5197478, 10394956, 20789912]

約数ペア:

[(1, 20789912), (2, 10394956), (4, 5197478), (8, 2598739), (11, 1889992), (13, 1599224), (17, 1222936), (22, 944996), (26, 799612), (34, 611468), (44, 472498), (52, 399806), (68, 305734), (88, 236249), (104, 199903), (136, 152867), (143, 145384), (187, 111176), (221, 94072), (286, 72692), (374, 55588), (442, 47036), (572, 36346), (748, 27794), (884, 23518), (1069, 19448), (1144, 18173), (1496, 13897), (1768, 11759), (2138, 9724), (2431, 8552), (4276, 4862)]