20138379849

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{929}}^1\times {\mathrm{7321}}^1$

素因数の和:8310

約数の個数: 48

約数和(自身を含む): 33992824320

約数和(自身を除く): 13854444471

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 929, 987, 2787, 2961, 6503, 7321, 8361, 19509, 21963, 43663, 51247, 58527, 65889, 130989, 153741, 305641, 344087, 392967, 461223, 916923, 1032261, 2408609, 2750769, 3096783, 6801209, 7225827, 20403627, 21677481, 47608463, 61210881, 142825389, 319656823, 428476167, 958970469, 2237597761, 2876911407, 6712793283, 20138379849]

約数ペア:

[(1, 20138379849), (3, 6712793283), (7, 2876911407), (9, 2237597761), (21, 958970469), (47, 428476167), (63, 319656823), (141, 142825389), (329, 61210881), (423, 47608463), (929, 21677481), (987, 20403627), (2787, 7225827), (2961, 6801209), (6503, 3096783), (7321, 2750769), (8361, 2408609), (19509, 1032261), (21963, 916923), (43663, 461223), (51247, 392967), (58527, 344087), (65889, 305641), (130989, 153741)]