21582197

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1993}}^1$

素因数の和:2037

約数の個数: 24

約数和(自身を含む): 28641816

約数和(自身を除く): 7059619

約数列:

[1, 7, 13, 17, 49, 91, 119, 221, 637, 833, 1547, 1993, 10829, 13951, 25909, 33881, 97657, 181363, 237167, 440453, 1269541, 1660169, 3083171, 21582197]

約数ペア:

[(1, 21582197), (7, 3083171), (13, 1660169), (17, 1269541), (49, 440453), (91, 237167), (119, 181363), (221, 97657), (637, 33881), (833, 25909), (1547, 13951), (1993, 10829)]