16405417

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 21381120

約数和(自身を除く): 4975703

約数列:

[1, 7, 19, 23, 31, 133, 161, 173, 217, 437, 589, 713, 1211, 3059, 3287, 3979, 4123, 4991, 5363, 13547, 23009, 27853, 37541, 75601, 94829, 101897, 123349, 529207, 713279, 863443, 2343631, 16405417]

約数ペア:

[(1, 16405417), (7, 2343631), (19, 863443), (23, 713279), (31, 529207), (133, 123349), (161, 101897), (173, 94829), (217, 75601), (437, 37541), (589, 27853), (713, 23009), (1211, 13547), (3059, 5363), (3287, 4991), (3979, 4123)]