13007979

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{449}}^1$

素因数の和:524

約数の個数: 32

約数和(自身を含む): 20520000

約数和(自身を除く): 7512021

約数列:

[1, 3, 9, 27, 29, 37, 87, 111, 261, 333, 449, 783, 999, 1073, 1347, 3219, 4041, 9657, 12123, 13021, 16613, 28971, 39063, 49839, 117189, 149517, 351567, 448551, 481777, 1445331, 4335993, 13007979]

約数ペア:

[(1, 13007979), (3, 4335993), (9, 1445331), (27, 481777), (29, 448551), (37, 351567), (87, 149517), (111, 117189), (261, 49839), (333, 39063), (449, 28971), (783, 16613), (999, 13021), (1073, 12123), (1347, 9657), (3219, 4041)]