18211193

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 26199936

約数和(自身を除く): 7988743

約数列:

[1, 7, 11, 13, 23, 49, 77, 91, 113, 143, 161, 253, 299, 539, 637, 791, 1001, 1127, 1243, 1469, 1771, 2093, 2599, 3289, 5537, 7007, 8701, 10283, 12397, 14651, 16159, 18193, 23023, 28589, 33787, 60907, 71981, 113113, 127351, 161161, 200123, 236509, 371657, 791791, 1400861, 1655563, 2601599, 18211193]

約数ペア:

[(1, 18211193), (7, 2601599), (11, 1655563), (13, 1400861), (23, 791791), (49, 371657), (77, 236509), (91, 200123), (113, 161161), (143, 127351), (161, 113113), (253, 71981), (299, 60907), (539, 33787), (637, 28589), (791, 23023), (1001, 18193), (1127, 16159), (1243, 14651), (1469, 12397), (1771, 10283), (2093, 8701), (2599, 7007), (3289, 5537)]