21568533

素因数分解:

$3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{2383}}^1$

素因数の和:2824

約数の個数: 16

約数和(自身を含む): 32956416

約数和(自身を除く): 11387883

約数列:

[1, 3, 7, 21, 431, 1293, 2383, 3017, 7149, 9051, 16681, 50043, 1027073, 3081219, 7189511, 21568533]

約数ペア:

[(1, 21568533), (3, 7189511), (7, 3081219), (21, 1027073), (431, 50043), (1293, 16681), (2383, 9051), (3017, 7149)]