21902903

素因数分解:

${\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:454

約数の個数: 16

約数和(自身を含む): 24558336

約数和(自身を除く): 2655433

約数列:

[1, 11, 67, 113, 263, 737, 1243, 2893, 7571, 17621, 29719, 83281, 193831, 326909, 1991173, 21902903]

約数ペア:

[(1, 21902903), (11, 1991173), (67, 326909), (113, 193831), (263, 83281), (737, 29719), (1243, 17621), (2893, 7571)]