21447855

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:150

約数の個数: 96

約数和(自身を含む): 45581760

約数和(自身を除く): 24133905

約数列:

[1, 3, 5, 9, 11, 13, 15, 27, 33, 39, 45, 55, 65, 99, 101, 117, 121, 135, 143, 165, 195, 297, 303, 351, 363, 429, 495, 505, 585, 605, 715, 909, 1089, 1111, 1287, 1313, 1485, 1515, 1573, 1755, 1815, 2145, 2727, 3267, 3333, 3861, 3939, 4545, 4719, 5445, 5555, 6435, 6565, 7865, 9999, 11817, 12221, 13635, 14157, 14443, 16335, 16665, 19305, 19695, 23595, 29997, 35451, 36663, 42471, 43329, 49995, 59085, 61105, 70785, 72215, 109989, 129987, 149985, 158873, 177255, 183315, 212355, 216645, 329967, 389961, 476619, 549945, 649935, 794365, 1429857, 1649835, 1949805, 2383095, 4289571, 7149285, 21447855]

約数ペア:

[(1, 21447855), (3, 7149285), (5, 4289571), (9, 2383095), (11, 1949805), (13, 1649835), (15, 1429857), (27, 794365), (33, 649935), (39, 549945), (45, 476619), (55, 389961), (65, 329967), (99, 216645), (101, 212355), (117, 183315), (121, 177255), (135, 158873), (143, 149985), (165, 129987), (195, 109989), (297, 72215), (303, 70785), (351, 61105), (363, 59085), (429, 49995), (495, 43329), (505, 42471), (585, 36663), (605, 35451), (715, 29997), (909, 23595), (1089, 19695), (1111, 19305), (1287, 16665), (1313, 16335), (1485, 14443), (1515, 14157), (1573, 13635), (1755, 12221), (1815, 11817), (2145, 9999), (2727, 7865), (3267, 6565), (3333, 6435), (3861, 5555), (3939, 5445), (4545, 4719)]