21468195

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:265

約数の個数: 96

約数和(自身を含む): 47623680

約数和(自身を除く): 26155485

約数列:

[1, 3, 5, 7, 9, 15, 17, 19, 21, 35, 45, 51, 57, 63, 85, 95, 105, 119, 133, 153, 171, 211, 255, 285, 315, 323, 357, 399, 595, 633, 665, 765, 855, 969, 1055, 1071, 1197, 1477, 1615, 1785, 1899, 1995, 2261, 2907, 3165, 3587, 4009, 4431, 4845, 5355, 5985, 6783, 7385, 9495, 10761, 11305, 12027, 13293, 14535, 17935, 20045, 20349, 22155, 25109, 28063, 32283, 33915, 36081, 53805, 60135, 66465, 68153, 75327, 84189, 101745, 125545, 140315, 161415, 180405, 204459, 225981, 252567, 340765, 376635, 420945, 477071, 613377, 1022295, 1129905, 1262835, 1431213, 2385355, 3066885, 4293639, 7156065, 21468195]

約数ペア:

[(1, 21468195), (3, 7156065), (5, 4293639), (7, 3066885), (9, 2385355), (15, 1431213), (17, 1262835), (19, 1129905), (21, 1022295), (35, 613377), (45, 477071), (51, 420945), (57, 376635), (63, 340765), (85, 252567), (95, 225981), (105, 204459), (119, 180405), (133, 161415), (153, 140315), (171, 125545), (211, 101745), (255, 84189), (285, 75327), (315, 68153), (323, 66465), (357, 60135), (399, 53805), (595, 36081), (633, 33915), (665, 32283), (765, 28063), (855, 25109), (969, 22155), (1055, 20349), (1071, 20045), (1197, 17935), (1477, 14535), (1615, 13293), (1785, 12027), (1899, 11305), (1995, 10761), (2261, 9495), (2907, 7385), (3165, 6783), (3587, 5985), (4009, 5355), (4431, 4845)]