21436490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{126097}}^1$

素因数の和:126121

約数の個数: 16

約数和(自身を含む): 40855752

約数和(自身を除く): 19419262

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 126097, 252194, 630485, 1260970, 2143649, 4287298, 10718245, 21436490]

約数ペア:

[(1, 21436490), (2, 10718245), (5, 4287298), (10, 2143649), (17, 1260970), (34, 630485), (85, 252194), (170, 126097)]