28335405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{641}}^1$

素因数の和:1077

約数の個数: 32

約数和(自身を含む): 52017408

約数和(自身を除く): 23682003

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 421, 641, 1263, 1923, 2105, 2947, 3205, 4487, 6315, 8841, 9615, 13461, 14735, 22435, 44205, 67305, 269861, 809583, 1349305, 1889027, 4047915, 5667081, 9445135, 28335405]

約数ペア:

[(1, 28335405), (3, 9445135), (5, 5667081), (7, 4047915), (15, 1889027), (21, 1349305), (35, 809583), (105, 269861), (421, 67305), (641, 44205), (1263, 22435), (1923, 14735), (2105, 13461), (2947, 9615), (3205, 8841), (4487, 6315)]