21433545

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{613}}^1$

素因数の和:671

約数の個数: 64

約数和(自身を含む): 44797440

約数和(自身を除く): 23363895

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 37, 45, 63, 105, 111, 135, 185, 189, 259, 315, 333, 555, 613, 777, 945, 999, 1295, 1665, 1839, 2331, 3065, 3885, 4291, 4995, 5517, 6993, 9195, 11655, 12873, 16551, 21455, 22681, 27585, 34965, 38619, 64365, 68043, 82755, 113405, 115857, 158767, 193095, 204129, 340215, 476301, 579285, 612387, 793835, 1020645, 1428903, 2381505, 3061935, 4286709, 7144515, 21433545]

約数ペア:

[(1, 21433545), (3, 7144515), (5, 4286709), (7, 3061935), (9, 2381505), (15, 1428903), (21, 1020645), (27, 793835), (35, 612387), (37, 579285), (45, 476301), (63, 340215), (105, 204129), (111, 193095), (135, 158767), (185, 115857), (189, 113405), (259, 82755), (315, 68043), (333, 64365), (555, 38619), (613, 34965), (777, 27585), (945, 22681), (999, 21455), (1295, 16551), (1665, 12873), (1839, 11655), (2331, 9195), (3065, 6993), (3885, 5517), (4291, 4995)]