20681696

素因数分解:

$2^5\times 7^1\times {\mathrm{127}}^1\times {\mathrm{727}}^1$

素因数の和:871

約数の個数: 48

約数和(自身を含む): 46964736

約数和(自身を除く): 26283040

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 127, 224, 254, 508, 727, 889, 1016, 1454, 1778, 2032, 2908, 3556, 4064, 5089, 5816, 7112, 10178, 11632, 14224, 20356, 23264, 28448, 40712, 81424, 92329, 162848, 184658, 369316, 646303, 738632, 1292606, 1477264, 2585212, 2954528, 5170424, 10340848, 20681696]

約数ペア:

[(1, 20681696), (2, 10340848), (4, 5170424), (7, 2954528), (8, 2585212), (14, 1477264), (16, 1292606), (28, 738632), (32, 646303), (56, 369316), (112, 184658), (127, 162848), (224, 92329), (254, 81424), (508, 40712), (727, 28448), (889, 23264), (1016, 20356), (1454, 14224), (1778, 11632), (2032, 10178), (2908, 7112), (3556, 5816), (4064, 5089)]