21930993

素因数分解:

$3^5\times 7^1\times {\mathrm{12893}}^1$

素因数の和:12915

約数の個数: 24

約数和(自身を含む): 37547328

約数和(自身を除く): 15616335

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 12893, 38679, 90251, 116037, 270753, 348111, 812259, 1044333, 2436777, 3132999, 7310331, 21930993]

約数ペア:

[(1, 21930993), (3, 7310331), (7, 3132999), (9, 2436777), (21, 1044333), (27, 812259), (63, 348111), (81, 270753), (189, 116037), (243, 90251), (567, 38679), (1701, 12893)]