21617964

素因数分解:

$2^2\times 3^2\times {\mathrm{677}}^1\times {\mathrm{887}}^1$

素因数の和:1574

約数の個数: 36

約数和(自身を含む): 54787824

約数和(自身を除く): 33169860

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 677, 887, 1354, 1774, 2031, 2661, 2708, 3548, 4062, 5322, 6093, 7983, 8124, 10644, 12186, 15966, 24372, 31932, 600499, 1200998, 1801497, 2401996, 3602994, 5404491, 7205988, 10808982, 21617964]

約数ペア:

[(1, 21617964), (2, 10808982), (3, 7205988), (4, 5404491), (6, 3602994), (9, 2401996), (12, 1801497), (18, 1200998), (36, 600499), (677, 31932), (887, 24372), (1354, 15966), (1774, 12186), (2031, 10644), (2661, 8124), (2708, 7983), (3548, 6093), (4062, 5322)]