221868017

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{3581}}^1$

素因数の和:3808

約数の個数: 16

約数和(自身を含む): 259967232

約数和(自身を除く): 38099215

約数列:

[1, 7, 53, 167, 371, 1169, 3581, 8851, 25067, 61957, 189793, 598027, 1328551, 4186189, 31695431, 221868017]

約数ペア:

[(1, 221868017), (7, 31695431), (53, 4186189), (167, 1328551), (371, 598027), (1169, 189793), (3581, 61957), (8851, 25067)]