20161217968

素因数分解:

$2^4\times {\mathrm{6247}}^1\times {\mathrm{201709}}^1$

素因数の和:207964

約数の個数: 20

約数和(自身を含む): 39068806480

約数和(自身を除く): 18907588512

約数列:

[1, 2, 4, 8, 16, 6247, 12494, 24988, 49976, 99952, 201709, 403418, 806836, 1613672, 3227344, 1260076123, 2520152246, 5040304492, 10080608984, 20161217968]

約数ペア:

[(1, 20161217968), (2, 10080608984), (4, 5040304492), (8, 2520152246), (16, 1260076123), (6247, 3227344), (12494, 1613672), (24988, 806836), (49976, 403418), (99952, 201709)]