28439327

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:526

約数の個数: 16

約数和(自身を含む): 33177600

約数和(自身を除く): 4738273

約数列:

[1, 7, 89, 191, 239, 623, 1337, 1673, 16999, 21271, 45649, 118993, 148897, 319543, 4062761, 28439327]

約数ペア:

[(1, 28439327), (7, 4062761), (89, 319543), (191, 148897), (239, 118993), (623, 45649), (1337, 21271), (1673, 16999)]