16619813

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 21504000

約数和(自身を除く): 4884187

約数列:

[1, 7, 19, 29, 31, 133, 139, 203, 217, 551, 589, 899, 973, 2641, 3857, 4031, 4123, 4309, 6293, 17081, 18487, 28217, 30163, 76589, 81871, 119567, 124961, 536123, 573097, 874727, 2374259, 16619813]

約数ペア:

[(1, 16619813), (7, 2374259), (19, 874727), (29, 573097), (31, 536123), (133, 124961), (139, 119567), (203, 81871), (217, 76589), (551, 30163), (589, 28217), (899, 18487), (973, 17081), (2641, 6293), (3857, 4309), (4031, 4123)]