21714484

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 44352000

約数和(自身を除く): 22637516

約数列:

[1, 2, 4, 11, 22, 23, 43, 44, 46, 86, 92, 172, 253, 473, 499, 506, 946, 989, 998, 1012, 1892, 1978, 1996, 3956, 5489, 10879, 10978, 11477, 21457, 21758, 21956, 22954, 42914, 43516, 45908, 85828, 126247, 236027, 252494, 472054, 493511, 504988, 944108, 987022, 1974044, 5428621, 10857242, 21714484]

約数ペア:

[(1, 21714484), (2, 10857242), (4, 5428621), (11, 1974044), (22, 987022), (23, 944108), (43, 504988), (44, 493511), (46, 472054), (86, 252494), (92, 236027), (172, 126247), (253, 85828), (473, 45908), (499, 43516), (506, 42914), (946, 22954), (989, 21956), (998, 21758), (1012, 21457), (1892, 11477), (1978, 10978), (1996, 10879), (3956, 5489)]