21042696

素因数分解:

$2^3\times 3^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:366

約数の個数: 64

約数和(自身を含む): 54587520

約数和(自身を除く): 33544824

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 53, 71, 106, 142, 159, 212, 213, 233, 284, 318, 424, 426, 466, 568, 636, 699, 852, 932, 1272, 1398, 1704, 1864, 2796, 3763, 5592, 7526, 11289, 12349, 15052, 16543, 22578, 24698, 30104, 33086, 37047, 45156, 49396, 49629, 66172, 74094, 90312, 98792, 99258, 132344, 148188, 198516, 296376, 397032, 876779, 1753558, 2630337, 3507116, 5260674, 7014232, 10521348, 21042696]

約数ペア:

[(1, 21042696), (2, 10521348), (3, 7014232), (4, 5260674), (6, 3507116), (8, 2630337), (12, 1753558), (24, 876779), (53, 397032), (71, 296376), (106, 198516), (142, 148188), (159, 132344), (212, 99258), (213, 98792), (233, 90312), (284, 74094), (318, 66172), (424, 49629), (426, 49396), (466, 45156), (568, 37047), (636, 33086), (699, 30104), (852, 24698), (932, 22578), (1272, 16543), (1398, 15052), (1704, 12349), (1864, 11289), (2796, 7526), (3763, 5592)]