20407023

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{24917}}^1$

素因数の和:24943

約数の個数: 24

約数和(自身を含む): 36280608

約数和(自身を除く): 15873585

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 24917, 74751, 174419, 224253, 323921, 523257, 971763, 1569771, 2267447, 2915289, 6802341, 20407023]

約数ペア:

[(1, 20407023), (3, 6802341), (7, 2915289), (9, 2267447), (13, 1569771), (21, 971763), (39, 523257), (63, 323921), (91, 224253), (117, 174419), (273, 74751), (819, 24917)]