20581209

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{23099}}^1$

素因数の和:23122

約数の個数: 20

約数和(自身を含む): 33541200

約数和(自身を除く): 12959991

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 23099, 69297, 207891, 254089, 623673, 762267, 1871019, 2286801, 6860403, 20581209]

約数ペア:

[(1, 20581209), (3, 6860403), (9, 2286801), (11, 1871019), (27, 762267), (33, 623673), (81, 254089), (99, 207891), (297, 69297), (891, 23099)]