28297515

素因数分解:

$3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4481}}^1$

素因数の和:4910

約数の個数: 16

約数和(自身を含む): 45393696

約数和(自身を除く): 17096181

約数列:

[1, 3, 5, 15, 421, 1263, 2105, 4481, 6315, 13443, 22405, 67215, 1886501, 5659503, 9432505, 28297515]

約数ペア:

[(1, 28297515), (3, 9432505), (5, 5659503), (15, 1886501), (421, 67215), (1263, 22405), (2105, 13443), (4481, 6315)]