668868781

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1\times {\mathrm{8221}}^1$

素因数の和:8484

約数の個数: 16

約数和(自身を含む): 781418880

約数和(自身を除く): 112550099

約数列:

[1, 7, 59, 197, 413, 1379, 8221, 11623, 57547, 81361, 485039, 1619537, 3395273, 11336759, 95552683, 668868781]

約数ペア:

[(1, 668868781), (7, 95552683), (59, 11336759), (197, 3395273), (413, 1619537), (1379, 485039), (8221, 81361), (11623, 57547)]