21089079

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{23669}}^1$

素因数の和:23692

約数の個数: 20

約数和(自身を含む): 34368840

約数和(自身を除く): 13279761

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 23669, 71007, 213021, 260359, 639063, 781077, 1917189, 2343231, 7029693, 21089079]

約数ペア:

[(1, 21089079), (3, 7029693), (9, 2343231), (11, 1917189), (27, 781077), (33, 639063), (81, 260359), (99, 213021), (297, 71007), (891, 23669)]