217965769

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{977}}^1$

素因数の和:1177

約数の個数: 24

約数和(自身を含む): 264236040

約数和(自身を除く): 46270271

約数列:

[1, 7, 29, 49, 157, 203, 977, 1099, 1421, 4553, 6839, 7693, 28333, 31871, 47873, 153389, 198331, 223097, 1073723, 1388317, 4448281, 7516061, 31137967, 217965769]

約数ペア:

[(1, 217965769), (7, 31137967), (29, 7516061), (49, 4448281), (157, 1388317), (203, 1073723), (977, 223097), (1099, 198331), (1421, 153389), (4553, 47873), (6839, 31871), (7693, 28333)]