20625507

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17231}}^1$

素因数の和:17263

約数の個数: 24

約数和(自身を含む): 35842560

約数和(自身を除く): 15217053

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 17231, 51693, 120617, 155079, 327389, 361851, 982167, 1085553, 2291723, 2946501, 6875169, 20625507]

約数ペア:

[(1, 20625507), (3, 6875169), (7, 2946501), (9, 2291723), (19, 1085553), (21, 982167), (57, 361851), (63, 327389), (133, 155079), (171, 120617), (399, 51693), (1197, 17231)]