21628250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{727}}^1$

素因数の和:768

約数の個数: 64

約数和(自身を含む): 49061376

約数和(自身を除く): 27433126

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 34, 35, 50, 70, 85, 119, 125, 170, 175, 238, 250, 350, 425, 595, 727, 850, 875, 1190, 1454, 1750, 2125, 2975, 3635, 4250, 5089, 5950, 7270, 10178, 12359, 14875, 18175, 24718, 25445, 29750, 36350, 50890, 61795, 86513, 90875, 123590, 127225, 173026, 181750, 254450, 308975, 432565, 617950, 636125, 865130, 1272250, 1544875, 2162825, 3089750, 4325650, 10814125, 21628250]

約数ペア:

[(1, 21628250), (2, 10814125), (5, 4325650), (7, 3089750), (10, 2162825), (14, 1544875), (17, 1272250), (25, 865130), (34, 636125), (35, 617950), (50, 432565), (70, 308975), (85, 254450), (119, 181750), (125, 173026), (170, 127225), (175, 123590), (238, 90875), (250, 86513), (350, 61795), (425, 50890), (595, 36350), (727, 29750), (850, 25445), (875, 24718), (1190, 18175), (1454, 14875), (1750, 12359), (2125, 10178), (2975, 7270), (3635, 5950), (4250, 5089)]