18709229

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{337}}^1$

素因数の和:465

約数の個数: 24

約数和(自身を含む): 24043968

約数和(自身を除く): 5334739

約数列:

[1, 7, 11, 49, 77, 103, 337, 539, 721, 1133, 2359, 3707, 5047, 7931, 16513, 25949, 34711, 55517, 181643, 242977, 381821, 1700839, 2672747, 18709229]

約数ペア:

[(1, 18709229), (7, 2672747), (11, 1700839), (49, 381821), (77, 242977), (103, 181643), (337, 55517), (539, 34711), (721, 25949), (1133, 16513), (2359, 7931), (3707, 5047)]