21992840

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{9319}}^1$

素因数の和:9389

約数の個数: 32

約数和(自身を含む): 50328000

約数和(自身を除く): 28335160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 9319, 18638, 37276, 46595, 74552, 93190, 186380, 372760, 549821, 1099642, 2199284, 2749105, 4398568, 5498210, 10996420, 21992840]

約数ペア:

[(1, 21992840), (2, 10996420), (4, 5498210), (5, 4398568), (8, 2749105), (10, 2199284), (20, 1099642), (40, 549821), (59, 372760), (118, 186380), (236, 93190), (295, 74552), (472, 46595), (590, 37276), (1180, 18638), (2360, 9319)]