28219305

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{26497}}^1$

素因数の和:26576

約数の個数: 16

約数和(自身を含む): 45788544

約数和(自身を除く): 17569239

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 26497, 79491, 132485, 397455, 1881287, 5643861, 9406435, 28219305]

約数ペア:

[(1, 28219305), (3, 9406435), (5, 5643861), (15, 1881287), (71, 397455), (213, 132485), (355, 79491), (1065, 26497)]