21902187

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{373}}^1$

素因数の和:459

約数の個数: 24

約数和(自身を含む): 31436944

約数和(自身を除く): 9534757

約数列:

[1, 3, 23, 37, 69, 111, 373, 529, 851, 1119, 1587, 2553, 8579, 13801, 19573, 25737, 41403, 58719, 197317, 317423, 591951, 952269, 7300729, 21902187]

約数ペア:

[(1, 21902187), (3, 7300729), (23, 952269), (37, 591951), (69, 317423), (111, 197317), (373, 58719), (529, 41403), (851, 25737), (1119, 19573), (1587, 13801), (2553, 8579)]