21056744

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1447}}^1$

素因数の和:1577

約数の個数: 32

約数和(自身を含む): 42223680

約数和(自身を除く): 21166936

約数列:

[1, 2, 4, 8, 17, 34, 68, 107, 136, 214, 428, 856, 1447, 1819, 2894, 3638, 5788, 7276, 11576, 14552, 24599, 49198, 98396, 154829, 196792, 309658, 619316, 1238632, 2632093, 5264186, 10528372, 21056744]

約数ペア:

[(1, 21056744), (2, 10528372), (4, 5264186), (8, 2632093), (17, 1238632), (34, 619316), (68, 309658), (107, 196792), (136, 154829), (214, 98396), (428, 49198), (856, 24599), (1447, 14552), (1819, 11576), (2894, 7276), (3638, 5788)]