81686318

素因数分解:

$2^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{16529}}^1$

素因数の和:16891

約数の個数: 16

約数和(自身を含む): 140438880

約数和(自身を除く): 58752562

約数列:

[1, 2, 7, 14, 353, 706, 2471, 4942, 16529, 33058, 115703, 231406, 5834737, 11669474, 40843159, 81686318]

約数ペア:

[(1, 81686318), (2, 40843159), (7, 11669474), (14, 5834737), (353, 231406), (706, 115703), (2471, 33058), (4942, 16529)]