21781186273

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{31267}}^1$

素因数の和:31477

約数の個数: 32

約数和(自身を含む): 27735966720

約数和(自身を除く): 5954780447

約数列:

[1, 7, 11, 77, 83, 109, 581, 763, 913, 1199, 6391, 8393, 9047, 31267, 63329, 99517, 218869, 343937, 696619, 2407559, 2595161, 3408103, 18166127, 23856721, 28546771, 37489133, 199827397, 262423931, 282872549, 1980107843, 3111598039, 21781186273]

約数ペア:

[(1, 21781186273), (7, 3111598039), (11, 1980107843), (77, 282872549), (83, 262423931), (109, 199827397), (581, 37489133), (763, 28546771), (913, 23856721), (1199, 18166127), (6391, 3408103), (8393, 2595161), (9047, 2407559), (31267, 696619), (63329, 343937), (99517, 218869)]