19855633

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 24316200

約数和(自身を除く): 4460567

約数列:

[1, 7, 29, 49, 89, 157, 203, 623, 1099, 1421, 2581, 4361, 4553, 7693, 13973, 18067, 31871, 97811, 126469, 223097, 405217, 684677, 2836519, 19855633]

約数ペア:

[(1, 19855633), (7, 2836519), (29, 684677), (49, 405217), (89, 223097), (157, 126469), (203, 97811), (623, 31871), (1099, 18067), (1421, 13973), (2581, 7693), (4361, 4553)]