821497131

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1003049}}^1$

素因数の和:1003075

約数の個数: 24

約数和(自身を含む): 1460440800

約数和(自身を除く): 638943669

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 1003049, 3009147, 7021343, 9027441, 13039637, 21064029, 39118911, 63192087, 91277459, 117356733, 273832377, 821497131]

約数ペア:

[(1, 821497131), (3, 273832377), (7, 117356733), (9, 91277459), (13, 63192087), (21, 39118911), (39, 21064029), (63, 13039637), (91, 9027441), (117, 7021343), (273, 3009147), (819, 1003049)]