251199

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:151

約数の個数: 24

約数和(自身を含む): 414960

約数和(自身を除く): 163761

約数列:

[1, 3, 9, 13, 19, 39, 57, 113, 117, 171, 247, 339, 741, 1017, 1469, 2147, 2223, 4407, 6441, 13221, 19323, 27911, 83733, 251199]

約数ペア:

[(1, 251199), (3, 83733), (9, 27911), (13, 19323), (19, 13221), (39, 6441), (57, 4407), (113, 2223), (117, 2147), (171, 1469), (247, 1017), (339, 741)]