20996615

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{13001}}^1$

素因数の和:13042

約数の個数: 16

約数和(自身を含む): 28084320

約数和(自身を除く): 7087705

約数列:

[1, 5, 17, 19, 85, 95, 323, 1615, 13001, 65005, 221017, 247019, 1105085, 1235095, 4199323, 20996615]

約数ペア:

[(1, 20996615), (5, 4199323), (17, 1235095), (19, 1105085), (85, 247019), (95, 221017), (323, 65005), (1615, 13001)]