221738395

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{6571}}^1$

素因数の和:6990

約数の個数: 16

約数和(自身を含む): 282490848

約数和(自身を除く): 60752453

約数列:

[1, 5, 17, 85, 397, 1985, 6571, 6749, 32855, 33745, 111707, 558535, 2608687, 13043435, 44347679, 221738395]

約数ペア:

[(1, 221738395), (5, 44347679), (17, 13043435), (85, 2608687), (397, 558535), (1985, 111707), (6571, 33745), (6749, 32855)]