16387189

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 21518336

約数和(自身を除く): 5131147

約数列:

[1, 7, 13, 31, 37, 91, 157, 217, 259, 403, 481, 1099, 1147, 2041, 2821, 3367, 4867, 5809, 8029, 14287, 14911, 34069, 40663, 63271, 75517, 104377, 180079, 442897, 528619, 1260553, 2341027, 16387189]

約数ペア:

[(1, 16387189), (7, 2341027), (13, 1260553), (31, 528619), (37, 442897), (91, 180079), (157, 104377), (217, 75517), (259, 63271), (403, 40663), (481, 34069), (1099, 14911), (1147, 14287), (2041, 8029), (2821, 5809), (3367, 4867)]