20408535

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{967}}^1$

素因数の和:1052

約数の個数: 48

約数和(自身を含む): 41074176

約数和(自身を除く): 20665641

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 67, 105, 201, 315, 335, 469, 603, 967, 1005, 1407, 2345, 2901, 3015, 4221, 4835, 6769, 7035, 8703, 14505, 20307, 21105, 33845, 43515, 60921, 64789, 101535, 194367, 304605, 323945, 453523, 583101, 971835, 1360569, 2267615, 2915505, 4081707, 6802845, 20408535]

約数ペア:

[(1, 20408535), (3, 6802845), (5, 4081707), (7, 2915505), (9, 2267615), (15, 1360569), (21, 971835), (35, 583101), (45, 453523), (63, 323945), (67, 304605), (105, 194367), (201, 101535), (315, 64789), (335, 60921), (469, 43515), (603, 33845), (967, 21105), (1005, 20307), (1407, 14505), (2345, 8703), (2901, 7035), (3015, 6769), (4221, 4835)]