21431906

素因数分解:

$2^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:526

約数の個数: 24

約数和(自身を含む): 34401024

約数和(自身を除く): 12969118

約数列:

[1, 2, 23, 46, 47, 94, 431, 529, 862, 1058, 1081, 2162, 9913, 19826, 20257, 24863, 40514, 49726, 227999, 455998, 465911, 931822, 10715953, 21431906]

約数ペア:

[(1, 21431906), (2, 10715953), (23, 931822), (46, 465911), (47, 455998), (94, 227999), (431, 49726), (529, 40514), (862, 24863), (1058, 20257), (1081, 19826), (2162, 9913)]