28331751

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{5209}}^1$

素因数の和:5263

約数の個数: 24

約数和(自身を含む): 45139440

約数和(自身を除く): 16807689

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 5209, 5439, 15627, 36463, 109389, 192733, 255241, 578199, 765723, 1349131, 4047393, 9443917, 28331751]

約数ペア:

[(1, 28331751), (3, 9443917), (7, 4047393), (21, 1349131), (37, 765723), (49, 578199), (111, 255241), (147, 192733), (259, 109389), (777, 36463), (1813, 15627), (5209, 5439)]