20866221

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{33601}}^1$

素因数の和:33633

約数の個数: 16

約数和(自身を含む): 32257920

約数和(自身を除く): 11391699

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 33601, 100803, 302409, 772823, 907227, 2318469, 6955407, 20866221]

約数ペア:

[(1, 20866221), (3, 6955407), (9, 2318469), (23, 907227), (27, 772823), (69, 302409), (207, 100803), (621, 33601)]