18280701

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{631}}^1$

素因数の和:706

約数の個数: 32

約数和(自身を含む): 28819200

約数和(自身を除く): 10538499

約数列:

[1, 3, 9, 27, 29, 37, 87, 111, 261, 333, 631, 783, 999, 1073, 1893, 3219, 5679, 9657, 17037, 18299, 23347, 28971, 54897, 70041, 164691, 210123, 494073, 630369, 677063, 2031189, 6093567, 18280701]

約数ペア:

[(1, 18280701), (3, 6093567), (9, 2031189), (27, 677063), (29, 630369), (37, 494073), (87, 210123), (111, 164691), (261, 70041), (333, 54897), (631, 28971), (783, 23347), (999, 18299), (1073, 17037), (1893, 9657), (3219, 5679)]