21111045

素因数分解:

$3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{3343}}^1$

素因数の和:3772

約数の個数: 16

約数和(自身を含む): 33868032

約数和(自身を除く): 12756987

約数列:

[1, 3, 5, 15, 421, 1263, 2105, 3343, 6315, 10029, 16715, 50145, 1407403, 4222209, 7037015, 21111045]

約数ペア:

[(1, 21111045), (3, 7037015), (5, 4222209), (15, 1407403), (421, 50145), (1263, 16715), (2105, 10029), (3343, 6315)]