28681159

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 33598800

約数和(自身を除く): 4917641

約数列:

[1, 13, 17, 67, 149, 169, 221, 871, 1139, 1937, 2533, 2873, 9983, 11323, 14807, 25181, 32929, 129779, 169711, 192491, 428077, 1687127, 2206243, 28681159]

約数ペア:

[(1, 28681159), (13, 2206243), (17, 1687127), (67, 428077), (149, 192491), (169, 169711), (221, 129779), (871, 32929), (1139, 25181), (1937, 14807), (2533, 11323), (2873, 9983)]