21670767

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1523}}^1$

素因数の和:1580

約数の個数: 32

約数和(自身を含む): 35112960

約数和(自身を除く): 13442193

約数列:

[1, 3, 9, 17, 27, 31, 51, 93, 153, 279, 459, 527, 837, 1523, 1581, 4569, 4743, 13707, 14229, 25891, 41121, 47213, 77673, 141639, 233019, 424917, 699057, 802621, 1274751, 2407863, 7223589, 21670767]

約数ペア:

[(1, 21670767), (3, 7223589), (9, 2407863), (17, 1274751), (27, 802621), (31, 699057), (51, 424917), (93, 233019), (153, 141639), (279, 77673), (459, 47213), (527, 41121), (837, 25891), (1523, 14229), (1581, 13707), (4569, 4743)]