217969503

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{21773}}^1$

素因数の和:21894

約数の個数: 16

約数和(自身を含む): 301003776

約数和(自身を除く): 83034273

約数列:

[1, 3, 47, 71, 141, 213, 3337, 10011, 21773, 65319, 1023331, 1545883, 3069993, 4637649, 72656501, 217969503]

約数ペア:

[(1, 217969503), (3, 72656501), (47, 4637649), (71, 3069993), (141, 1545883), (213, 1023331), (3337, 65319), (10011, 21773)]