21324681

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{6637}}^1$

素因数の和:6670

約数の個数: 32

約数和(自身を含む): 38234880

約数和(自身を除く): 16910199

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 189, 357, 459, 1071, 3213, 6637, 19911, 46459, 59733, 112829, 139377, 179199, 338487, 418131, 789803, 1015461, 1254393, 2369409, 3046383, 7108227, 21324681]

約数ペア:

[(1, 21324681), (3, 7108227), (7, 3046383), (9, 2369409), (17, 1254393), (21, 1015461), (27, 789803), (51, 418131), (63, 338487), (119, 179199), (153, 139377), (189, 112829), (357, 59733), (459, 46459), (1071, 19911), (3213, 6637)]