19287693

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:538

約数の個数: 32

約数和(自身を含む): 30096000

約数和(自身を除く): 10808307

約数列:

[1, 3, 9, 27, 37, 43, 111, 129, 333, 387, 449, 999, 1161, 1347, 1591, 4041, 4773, 12123, 14319, 16613, 19307, 42957, 49839, 57921, 149517, 173763, 448551, 521289, 714359, 2143077, 6429231, 19287693]

約数ペア:

[(1, 19287693), (3, 6429231), (9, 2143077), (27, 714359), (37, 521289), (43, 448551), (111, 173763), (129, 149517), (333, 57921), (387, 49839), (449, 42957), (999, 19307), (1161, 16613), (1347, 14319), (1591, 12123), (4041, 4773)]