16840439

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 22588416

約数和(自身を除く): 5747977

約数列:

[1, 7, 11, 23, 37, 77, 161, 253, 257, 259, 407, 851, 1771, 1799, 2827, 2849, 5911, 5957, 9361, 9509, 19789, 41377, 65021, 65527, 66563, 104599, 218707, 455147, 732193, 1530949, 2405777, 16840439]

約数ペア:

[(1, 16840439), (7, 2405777), (11, 1530949), (23, 732193), (37, 455147), (77, 218707), (161, 104599), (253, 66563), (257, 65527), (259, 65021), (407, 41377), (851, 19789), (1771, 9509), (1799, 9361), (2827, 5957), (2849, 5911)]