81021213

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{98927}}^1$

素因数の和:98953

約数の個数: 24

約数和(自身を含む): 144039168

約数和(自身を除く): 63017955

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 98927, 296781, 692489, 890343, 1286051, 2077467, 3858153, 6232401, 9002357, 11574459, 27007071, 81021213]

約数ペア:

[(1, 81021213), (3, 27007071), (7, 11574459), (9, 9002357), (13, 6232401), (21, 3858153), (39, 2077467), (63, 1286051), (91, 890343), (117, 692489), (273, 296781), (819, 98927)]