21271987

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1013}}^1$

素因数の和:1130

約数の個数: 16

約数和(自身を含む): 24530688

約数和(自身を除く): 3258701

約数列:

[1, 11, 23, 83, 253, 913, 1013, 1909, 11143, 20999, 23299, 84079, 256289, 924869, 1933817, 21271987]

約数ペア:

[(1, 21271987), (11, 1933817), (23, 924869), (83, 256289), (253, 84079), (913, 23299), (1013, 20999), (1909, 11143)]