21229641

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{10771}}^1$

素因数の和:10853

約数の個数: 16

約数和(自身を含む): 31885120

約数和(自身を除く): 10655479

約数列:

[1, 3, 9, 27, 73, 219, 657, 1971, 10771, 32313, 96939, 290817, 786283, 2358849, 7076547, 21229641]

約数ペア:

[(1, 21229641), (3, 7076547), (9, 2358849), (27, 786283), (73, 290817), (219, 96939), (657, 32313), (1971, 10771)]