16657305

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 31420224

約数和(自身を除く): 14762919

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 131, 147, 173, 245, 393, 519, 655, 735, 865, 917, 1211, 1965, 2595, 2751, 3633, 4585, 6055, 6419, 8477, 13755, 18165, 19257, 22663, 25431, 32095, 42385, 67989, 96285, 113315, 127155, 158641, 339945, 475923, 793205, 1110487, 2379615, 3331461, 5552435, 16657305]

約数ペア:

[(1, 16657305), (3, 5552435), (5, 3331461), (7, 2379615), (15, 1110487), (21, 793205), (35, 475923), (49, 339945), (105, 158641), (131, 127155), (147, 113315), (173, 96285), (245, 67989), (393, 42385), (519, 32095), (655, 25431), (735, 22663), (865, 19257), (917, 18165), (1211, 13755), (1965, 8477), (2595, 6419), (2751, 6055), (3633, 4585)]