20738277

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{11351}}^1$

素因数の和:11393

約数の個数: 24

約数和(自身を含む): 35418240

約数和(自身を除く): 14679963

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 11351, 34053, 79457, 102159, 238371, 329179, 715113, 987537, 2304253, 2962611, 6912759, 20738277]

約数ペア:

[(1, 20738277), (3, 6912759), (7, 2962611), (9, 2304253), (21, 987537), (29, 715113), (63, 329179), (87, 238371), (203, 102159), (261, 79457), (609, 34053), (1827, 11351)]