18157321

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3271}}^1$

素因数の和:3352

約数の個数: 16

約数和(自身を含む): 22720768

約数和(自身を除く): 4563447

約数列:

[1, 7, 13, 61, 91, 427, 793, 3271, 5551, 22897, 42523, 199531, 297661, 1396717, 2593903, 18157321]

約数ペア:

[(1, 18157321), (7, 2593903), (13, 1396717), (61, 297661), (91, 199531), (427, 42523), (793, 22897), (3271, 5551)]