20298057

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 30602880

約数和(自身を除く): 10304823

約数列:

[1, 3, 13, 29, 39, 87, 131, 137, 377, 393, 411, 1131, 1703, 1781, 3799, 3973, 5109, 5343, 11397, 11919, 17947, 49387, 51649, 53841, 148161, 154947, 233311, 520463, 699933, 1561389, 6766019, 20298057]

約数ペア:

[(1, 20298057), (3, 6766019), (13, 1561389), (29, 699933), (39, 520463), (87, 233311), (131, 154947), (137, 148161), (377, 53841), (393, 51649), (411, 49387), (1131, 17947), (1703, 11919), (1781, 11397), (3799, 5343), (3973, 5109)]