21207033

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{421}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 31928520

約数和(自身を除く): 10721487

約数列:

[1, 3, 9, 29, 87, 193, 261, 421, 579, 1263, 1737, 3789, 5597, 12209, 16791, 36627, 50373, 81253, 109881, 243759, 731277, 2356337, 7069011, 21207033]

約数ペア:

[(1, 21207033), (3, 7069011), (9, 2356337), (29, 731277), (87, 243759), (193, 109881), (261, 81253), (421, 50373), (579, 36627), (1263, 16791), (1737, 12209), (3789, 5597)]