21023145

素因数分解:

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

素因数の和:66

約数の個数: 96

約数和(自身を含む): 44763264

約数和(自身を除く): 23740119

約数列:

[1, 3, 5, 9, 11, 13, 15, 27, 33, 39, 45, 55, 65, 81, 99, 117, 121, 135, 143, 165, 195, 243, 297, 351, 363, 405, 429, 495, 585, 605, 715, 891, 1053, 1089, 1215, 1287, 1331, 1485, 1573, 1755, 1815, 2145, 2673, 3159, 3267, 3861, 3993, 4455, 4719, 5265, 5445, 6435, 6655, 7865, 9801, 11583, 11979, 13365, 14157, 15795, 16335, 17303, 19305, 19965, 23595, 29403, 34749, 35937, 42471, 49005, 51909, 57915, 59895, 70785, 86515, 107811, 127413, 147015, 155727, 173745, 179685, 212355, 259545, 323433, 382239, 467181, 539055, 637065, 778635, 1401543, 1617165, 1911195, 2335905, 4204629, 7007715, 21023145]

約数ペア:

[(1, 21023145), (3, 7007715), (5, 4204629), (9, 2335905), (11, 1911195), (13, 1617165), (15, 1401543), (27, 778635), (33, 637065), (39, 539055), (45, 467181), (55, 382239), (65, 323433), (81, 259545), (99, 212355), (117, 179685), (121, 173745), (135, 155727), (143, 147015), (165, 127413), (195, 107811), (243, 86515), (297, 70785), (351, 59895), (363, 57915), (405, 51909), (429, 49005), (495, 42471), (585, 35937), (605, 34749), (715, 29403), (891, 23595), (1053, 19965), (1089, 19305), (1215, 17303), (1287, 16335), (1331, 15795), (1485, 14157), (1573, 13365), (1755, 11979), (1815, 11583), (2145, 9801), (2673, 7865), (3159, 6655), (3267, 6435), (3861, 5445), (3993, 5265), (4455, 4719)]