21456522

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{10739}}^1$

素因数の和:10787

約数の個数: 32

約数和(自身を含む): 48974400

約数和(自身を除く): 27517878

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 10739, 21478, 32217, 64434, 96651, 193302, 289953, 397343, 579906, 794686, 1192029, 2384058, 3576087, 7152174, 10728261, 21456522]

約数ペア:

[(1, 21456522), (2, 10728261), (3, 7152174), (6, 3576087), (9, 2384058), (18, 1192029), (27, 794686), (37, 579906), (54, 397343), (74, 289953), (111, 193302), (222, 96651), (333, 64434), (666, 32217), (999, 21478), (1998, 10739)]