217872297

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{20887}}^1$

素因数の和:20973

約数の個数: 24

約数和(自身を含む): 336714560

約数和(自身を除く): 118842263

約数列:

[1, 3, 9, 19, 57, 61, 171, 183, 549, 1159, 3477, 10431, 20887, 62661, 187983, 396853, 1190559, 1274107, 3571677, 3822321, 11466963, 24208033, 72624099, 217872297]

約数ペア:

[(1, 217872297), (3, 72624099), (9, 24208033), (19, 11466963), (57, 3822321), (61, 3571677), (171, 1274107), (183, 1190559), (549, 396853), (1159, 187983), (3477, 62661), (10431, 20887)]