217948073

素因数分解:

$7^1\times {\mathrm{31}}^2\times {\mathrm{179}}^1\times {\mathrm{181}}^1$

素因数の和:429

約数の個数: 24

約数和(自身を含む): 260245440

約数和(自身を除く): 42297367

約数列:

[1, 7, 31, 179, 181, 217, 961, 1253, 1267, 5549, 5611, 6727, 32399, 38843, 39277, 172019, 173941, 226793, 1004369, 1204133, 1217587, 7030583, 31135439, 217948073]

約数ペア:

[(1, 217948073), (7, 31135439), (31, 7030583), (179, 1217587), (181, 1204133), (217, 1004369), (961, 226793), (1253, 173941), (1267, 172019), (5549, 39277), (5611, 38843), (6727, 32399)]