191156721

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{367}}^1\times {\mathrm{1459}}^1$

素因数の和:1853

約数の個数: 32

約数和(自身を含む): 309473280

約数和(自身を除く): 118316559

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 367, 1101, 1459, 2569, 4377, 6239, 7707, 10213, 18717, 24803, 30639, 43673, 74409, 131019, 173621, 520863, 535453, 1606359, 3748171, 9102701, 11244513, 27308103, 63718907, 191156721]

約数ペア:

[(1, 191156721), (3, 63718907), (7, 27308103), (17, 11244513), (21, 9102701), (51, 3748171), (119, 1606359), (357, 535453), (367, 520863), (1101, 173621), (1459, 131019), (2569, 74409), (4377, 43673), (6239, 30639), (7707, 24803), (10213, 18717)]