20547765

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:139

約数の個数: 96

約数和(自身を含む): 43819776

約数和(自身を除く): 23272011

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 37, 41, 43, 45, 63, 105, 111, 123, 129, 185, 205, 215, 259, 287, 301, 315, 333, 369, 387, 555, 615, 645, 777, 861, 903, 1295, 1435, 1505, 1517, 1591, 1665, 1763, 1845, 1935, 2331, 2583, 2709, 3885, 4305, 4515, 4551, 4773, 5289, 7585, 7955, 8815, 10619, 11137, 11655, 12341, 12915, 13545, 13653, 14319, 15867, 22755, 23865, 26445, 31857, 33411, 37023, 53095, 55685, 61705, 65231, 68265, 71595, 79335, 95571, 100233, 111069, 159285, 167055, 185115, 195693, 326155, 456617, 477855, 501165, 555345, 587079, 978465, 1369851, 2283085, 2935395, 4109553, 6849255, 20547765]

約数ペア:

[(1, 20547765), (3, 6849255), (5, 4109553), (7, 2935395), (9, 2283085), (15, 1369851), (21, 978465), (35, 587079), (37, 555345), (41, 501165), (43, 477855), (45, 456617), (63, 326155), (105, 195693), (111, 185115), (123, 167055), (129, 159285), (185, 111069), (205, 100233), (215, 95571), (259, 79335), (287, 71595), (301, 68265), (315, 65231), (333, 61705), (369, 55685), (387, 53095), (555, 37023), (615, 33411), (645, 31857), (777, 26445), (861, 23865), (903, 22755), (1295, 15867), (1435, 14319), (1505, 13653), (1517, 13545), (1591, 12915), (1665, 12341), (1763, 11655), (1845, 11137), (1935, 10619), (2331, 8815), (2583, 7955), (2709, 7585), (3885, 5289), (4305, 4773), (4515, 4551)]