20565951

素因数分解:

$3^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{2557}}^1$

素因数の和:2950

約数の個数: 16

約数和(自身を含む): 31432704

約数和(自身を除く): 10866753

約数列:

[1, 3, 7, 21, 383, 1149, 2557, 2681, 7671, 8043, 17899, 53697, 979331, 2937993, 6855317, 20565951]

約数ペア:

[(1, 20565951), (3, 6855317), (7, 2937993), (21, 979331), (383, 53697), (1149, 17899), (2557, 8043), (2681, 7671)]