28213647

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3301}}^1$

素因数の和:3359

約数の個数: 32

約数和(自身を含む): 48182784

約数和(自身を除く): 19969137

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 231, 259, 407, 777, 1221, 2849, 3301, 8547, 9903, 23107, 36311, 69321, 108933, 122137, 254177, 366411, 762531, 854959, 1343507, 2564877, 4030521, 9404549, 28213647]

約数ペア:

[(1, 28213647), (3, 9404549), (7, 4030521), (11, 2564877), (21, 1343507), (33, 854959), (37, 762531), (77, 366411), (111, 254177), (231, 122137), (259, 108933), (407, 69321), (777, 36311), (1221, 23107), (2849, 9903), (3301, 8547)]