28684789

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{1123}}^1$

素因数の和:1260

約数の個数: 16

約数和(自身を含む): 33989760

約数和(自身を除く): 5304971

約数列:

[1, 7, 41, 89, 287, 623, 1123, 3649, 7861, 25543, 46043, 99947, 322301, 699629, 4097827, 28684789]

約数ペア:

[(1, 28684789), (7, 4097827), (41, 699629), (89, 322301), (287, 99947), (623, 46043), (1123, 25543), (3649, 7861)]