20595141

素因数分解:

$3^4\times 7^2\times {\mathrm{5189}}^1$

素因数の和:5215

約数の個数: 30

約数和(自身を含む): 35795430

約数和(自身を除く): 15200289

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 5189, 15567, 36323, 46701, 108969, 140103, 254261, 326907, 420309, 762783, 980721, 2288349, 2942163, 6865047, 20595141]

約数ペア:

[(1, 20595141), (3, 6865047), (7, 2942163), (9, 2288349), (21, 980721), (27, 762783), (49, 420309), (63, 326907), (81, 254261), (147, 140103), (189, 108969), (441, 46701), (567, 36323), (1323, 15567), (3969, 5189)]