21520458

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{10771}}^1$

素因数の和:10819

約数の個数: 32

約数和(自身を含む): 49120320

約数和(自身を除く): 27599862

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 10771, 21542, 32313, 64626, 96939, 193878, 290817, 398527, 581634, 797054, 1195581, 2391162, 3586743, 7173486, 10760229, 21520458]

約数ペア:

[(1, 21520458), (2, 10760229), (3, 7173486), (6, 3586743), (9, 2391162), (18, 1195581), (27, 797054), (37, 581634), (54, 398527), (74, 290817), (111, 193878), (222, 96939), (333, 64626), (666, 32313), (999, 21542), (1998, 10771)]