20171805968

素因数分解:

$2^4\times {\mathrm{2473}}^1\times {\mathrm{509801}}^1$

素因数の和:512282

約数の個数: 20

約数和(自身を含む): 39098754588

約数和(自身を除く): 18926948620

約数列:

[1, 2, 4, 8, 16, 2473, 4946, 9892, 19784, 39568, 509801, 1019602, 2039204, 4078408, 8156816, 1260737873, 2521475746, 5042951492, 10085902984, 20171805968]

約数ペア:

[(1, 20171805968), (2, 10085902984), (4, 5042951492), (8, 2521475746), (16, 1260737873), (2473, 8156816), (4946, 4078408), (9892, 2039204), (19784, 1019602), (39568, 509801)]