81843489

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{7687}}^1$

素因数の和:7726

約数の個数: 36

約数和(自身を含む): 146318016

約数和(自身を除く): 64474527

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 169, 273, 507, 819, 1183, 1521, 3549, 7687, 10647, 23061, 53809, 69183, 99931, 161427, 299793, 484281, 699517, 899379, 1299103, 2098551, 3897309, 6295653, 9093721, 11691927, 27281163, 81843489]

約数ペア:

[(1, 81843489), (3, 27281163), (7, 11691927), (9, 9093721), (13, 6295653), (21, 3897309), (39, 2098551), (63, 1299103), (91, 899379), (117, 699517), (169, 484281), (273, 299793), (507, 161427), (819, 99931), (1183, 69183), (1521, 53809), (3549, 23061), (7687, 10647)]