28820771

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 35458560

約数和(自身を除く): 6637789

約数列:

[1, 7, 23, 49, 107, 161, 239, 749, 1127, 1673, 2461, 5243, 5497, 11711, 17227, 25573, 38479, 120589, 179011, 269353, 588179, 1253077, 4117253, 28820771]

約数ペア:

[(1, 28820771), (7, 4117253), (23, 1253077), (49, 588179), (107, 269353), (161, 179011), (239, 120589), (749, 38479), (1127, 25573), (1673, 17227), (2461, 11711), (5243, 5497)]