208491003

素因数分解:

$3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5179}}^1$

素因数の和:5269

約数の個数: 40

約数和(自身を含む): 361025280

約数和(自身を除く): 152534277

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 81, 189, 213, 497, 567, 639, 1491, 1917, 4473, 5179, 5751, 13419, 15537, 36253, 40257, 46611, 108759, 139833, 326277, 367709, 419499, 978831, 1103127, 2573963, 2936493, 3309381, 7721889, 9928143, 23165667, 29784429, 69497001, 208491003]

約数ペア:

[(1, 208491003), (3, 69497001), (7, 29784429), (9, 23165667), (21, 9928143), (27, 7721889), (63, 3309381), (71, 2936493), (81, 2573963), (189, 1103127), (213, 978831), (497, 419499), (567, 367709), (639, 326277), (1491, 139833), (1917, 108759), (4473, 46611), (5179, 40257), (5751, 36253), (13419, 15537)]