16668855

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:621

約数の個数: 64

約数和(自身を含む): 35020800

約数和(自身を除く): 18351945

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 31, 35, 45, 63, 93, 105, 135, 155, 189, 217, 279, 315, 465, 569, 651, 837, 945, 1085, 1395, 1707, 1953, 2845, 3255, 3983, 4185, 5121, 5859, 8535, 9765, 11949, 15363, 17639, 19915, 25605, 29295, 35847, 52917, 59745, 76815, 88195, 107541, 123473, 158751, 179235, 264585, 370419, 476253, 537705, 617365, 793755, 1111257, 1852095, 2381265, 3333771, 5556285, 16668855]

約数ペア:

[(1, 16668855), (3, 5556285), (5, 3333771), (7, 2381265), (9, 1852095), (15, 1111257), (21, 793755), (27, 617365), (31, 537705), (35, 476253), (45, 370419), (63, 264585), (93, 179235), (105, 158751), (135, 123473), (155, 107541), (189, 88195), (217, 76815), (279, 59745), (315, 52917), (465, 35847), (569, 29295), (651, 25605), (837, 19915), (945, 17639), (1085, 15363), (1395, 11949), (1707, 9765), (1953, 8535), (2845, 5859), (3255, 5121), (3983, 4185)]