212520385

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{552001}}^1$

素因数の和:552024

約数の個数: 16

約数和(自身を含む): 317953152

約数和(自身を除く): 105432767

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 552001, 2760005, 3864007, 6072011, 19320035, 30360055, 42504077, 212520385]

約数ペア:

[(1, 212520385), (5, 42504077), (7, 30360055), (11, 19320035), (35, 6072011), (55, 3864007), (77, 2760005), (385, 552001)]