21355569

素因数分解:

$3^5\times {\mathrm{23}}^1\times {\mathrm{3821}}^1$

素因数の和:3859

約数の個数: 24

約数和(自身を含む): 33388992

約数和(自身を除く): 12033423

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 243, 621, 1863, 3821, 5589, 11463, 34389, 87883, 103167, 263649, 309501, 790947, 928503, 2372841, 7118523, 21355569]

約数ペア:

[(1, 21355569), (3, 7118523), (9, 2372841), (23, 928503), (27, 790947), (69, 309501), (81, 263649), (207, 103167), (243, 87883), (621, 34389), (1863, 11463), (3821, 5589)]