20692605

素因数分解:

$3^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2087}}^1$

素因数の和:2756

約数の個数: 16

約数和(自身を含む): 33174144

約数和(自身を除く): 12481539

約数列:

[1, 3, 5, 15, 661, 1983, 2087, 3305, 6261, 9915, 10435, 31305, 1379507, 4138521, 6897535, 20692605]

約数ペア:

[(1, 20692605), (3, 6897535), (5, 4138521), (15, 1379507), (661, 31305), (1983, 10435), (2087, 9915), (3305, 6261)]