21350385

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{443}}^1$

素因数の和:484

約数の個数: 80

約数和(自身を含む): 46417536

約数和(自身を除く): 25067151

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 51, 63, 81, 85, 105, 119, 135, 153, 189, 255, 315, 357, 405, 443, 459, 567, 595, 765, 945, 1071, 1329, 1377, 1785, 2215, 2295, 2835, 3101, 3213, 3987, 5355, 6645, 6885, 7531, 9303, 9639, 11961, 15505, 16065, 19935, 22593, 27909, 35883, 37655, 46515, 48195, 52717, 59805, 67779, 83727, 112965, 139545, 158151, 179415, 203337, 251181, 263585, 338895, 418635, 474453, 610011, 790755, 1016685, 1255905, 1423359, 2372265, 3050055, 4270077, 7116795, 21350385]

約数ペア:

[(1, 21350385), (3, 7116795), (5, 4270077), (7, 3050055), (9, 2372265), (15, 1423359), (17, 1255905), (21, 1016685), (27, 790755), (35, 610011), (45, 474453), (51, 418635), (63, 338895), (81, 263585), (85, 251181), (105, 203337), (119, 179415), (135, 158151), (153, 139545), (189, 112965), (255, 83727), (315, 67779), (357, 59805), (405, 52717), (443, 48195), (459, 46515), (567, 37655), (595, 35883), (765, 27909), (945, 22593), (1071, 19935), (1329, 16065), (1377, 15505), (1785, 11961), (2215, 9639), (2295, 9303), (2835, 7531), (3101, 6885), (3213, 6645), (3987, 5355)]