81811161

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2803}}^1$

素因数の和:2882

約数の個数: 32

約数和(自身を含む): 129208320

約数和(自身を除く): 47397159

約数列:

[1, 3, 9, 23, 27, 47, 69, 141, 207, 423, 621, 1081, 1269, 2803, 3243, 8409, 9729, 25227, 29187, 64469, 75681, 131741, 193407, 395223, 580221, 1185669, 1740663, 3030043, 3557007, 9090129, 27270387, 81811161]

約数ペア:

[(1, 81811161), (3, 27270387), (9, 9090129), (23, 3557007), (27, 3030043), (47, 1740663), (69, 1185669), (141, 580221), (207, 395223), (423, 193407), (621, 131741), (1081, 75681), (1269, 64469), (2803, 29187), (3243, 25227), (8409, 9729)]