201919347

素因数分解:

$3^2\times 7^2\times {\mathrm{53}}^2\times {\mathrm{163}}^1$

素因数の和:289

約数の個数: 54

約数和(自身を含む): 347923212

約数和(自身を除く): 146003865

約数列:

[1, 3, 7, 9, 21, 49, 53, 63, 147, 159, 163, 371, 441, 477, 489, 1113, 1141, 1467, 2597, 2809, 3339, 3423, 7791, 7987, 8427, 8639, 10269, 19663, 23373, 23961, 25281, 25917, 58989, 60473, 71883, 77751, 137641, 176967, 181419, 412923, 423311, 457867, 544257, 1238769, 1269933, 1373601, 3205069, 3809799, 4120803, 9615207, 22435483, 28845621, 67306449, 201919347]

約数ペア:

[(1, 201919347), (3, 67306449), (7, 28845621), (9, 22435483), (21, 9615207), (49, 4120803), (53, 3809799), (63, 3205069), (147, 1373601), (159, 1269933), (163, 1238769), (371, 544257), (441, 457867), (477, 423311), (489, 412923), (1113, 181419), (1141, 176967), (1467, 137641), (2597, 77751), (2809, 71883), (3339, 60473), (3423, 58989), (7791, 25917), (7987, 25281), (8427, 23961), (8639, 23373), (10269, 19663)]