21092049

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1511}}^1$

素因数の和:1578

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 13744431

約数列:

[1, 3, 9, 11, 27, 33, 47, 99, 141, 297, 423, 517, 1269, 1511, 1551, 4533, 4653, 13599, 13959, 16621, 40797, 49863, 71017, 149589, 213051, 448767, 639153, 781187, 1917459, 2343561, 7030683, 21092049]

約数ペア:

[(1, 21092049), (3, 7030683), (9, 2343561), (11, 1917459), (27, 781187), (33, 639153), (47, 448767), (99, 213051), (141, 149589), (297, 71017), (423, 49863), (517, 40797), (1269, 16621), (1511, 13959), (1551, 13599), (4533, 4653)]