2021355

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:78

約数の個数: 80

約数和(自身を含む): 4460544

約数和(自身を除く): 2439189

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 27, 31, 35, 45, 63, 69, 81, 93, 105, 115, 135, 155, 161, 189, 207, 217, 279, 315, 345, 405, 465, 483, 567, 621, 651, 713, 805, 837, 945, 1035, 1085, 1395, 1449, 1863, 1953, 2139, 2415, 2511, 2835, 3105, 3255, 3565, 4185, 4347, 4991, 5859, 6417, 7245, 9315, 9765, 10695, 12555, 13041, 14973, 17577, 19251, 21735, 24955, 29295, 32085, 44919, 57753, 65205, 74865, 87885, 96255, 134757, 224595, 288765, 404271, 673785, 2021355]

約数ペア:

[(1, 2021355), (3, 673785), (5, 404271), (7, 288765), (9, 224595), (15, 134757), (21, 96255), (23, 87885), (27, 74865), (31, 65205), (35, 57753), (45, 44919), (63, 32085), (69, 29295), (81, 24955), (93, 21735), (105, 19251), (115, 17577), (135, 14973), (155, 13041), (161, 12555), (189, 10695), (207, 9765), (217, 9315), (279, 7245), (315, 6417), (345, 5859), (405, 4991), (465, 4347), (483, 4185), (567, 3565), (621, 3255), (651, 3105), (713, 2835), (805, 2511), (837, 2415), (945, 2139), (1035, 1953), (1085, 1863), (1395, 1449)]