28991205

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37897}}^1$

素因数の和:37925

約数の個数: 24

約数和(自身を含む): 53208792

約数和(自身を除く): 24217587

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 37897, 113691, 189485, 341073, 568455, 644249, 1705365, 1932747, 3221245, 5798241, 9663735, 28991205]

約数ペア:

[(1, 28991205), (3, 9663735), (5, 5798241), (9, 3221245), (15, 1932747), (17, 1705365), (45, 644249), (51, 568455), (85, 341073), (153, 189485), (255, 113691), (765, 37897)]