18720927

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3307}}^1$

素因数の和:3367

約数の個数: 24

約数和(自身を含む): 29414736

約数和(自身を除く): 10693809

約数列:

[1, 3, 9, 17, 37, 51, 111, 153, 333, 629, 1887, 3307, 5661, 9921, 29763, 56219, 122359, 168657, 367077, 505971, 1101231, 2080103, 6240309, 18720927]

約数ペア:

[(1, 18720927), (3, 6240309), (9, 2080103), (17, 1101231), (37, 505971), (51, 367077), (111, 168657), (153, 122359), (333, 56219), (629, 29763), (1887, 9921), (3307, 5661)]