21585855963

素因数分解:

$3^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{1037233}}^1$

素因数の和:1038234

約数の個数: 16

約数和(自身を含む): 32925956096

約数和(自身を除く): 11340100133

約数列:

[1, 3, 7, 21, 991, 2973, 6937, 20811, 1037233, 3111699, 7260631, 21781893, 1027897903, 3083693709, 7195285321, 21585855963]

約数ペア:

[(1, 21585855963), (3, 7195285321), (7, 3083693709), (21, 1027897903), (991, 21781893), (2973, 7260631), (6937, 3111699), (20811, 1037233)]