201491381

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 264910464

約数和(自身を除く): 63419083

約数列:

[1, 7, 13, 37, 49, 83, 91, 103, 259, 481, 581, 637, 721, 1079, 1339, 1813, 3071, 3367, 3811, 4067, 5047, 7553, 8549, 9373, 21497, 23569, 26677, 39923, 49543, 52871, 59843, 65611, 111137, 150479, 186739, 279461, 316313, 346801, 418901, 777959, 1956227, 2214191, 2427607, 4112069, 5445713, 15499337, 28784483, 201491381]

約数ペア:

[(1, 201491381), (7, 28784483), (13, 15499337), (37, 5445713), (49, 4112069), (83, 2427607), (91, 2214191), (103, 1956227), (259, 777959), (481, 418901), (581, 346801), (637, 316313), (721, 279461), (1079, 186739), (1339, 150479), (1813, 111137), (3071, 65611), (3367, 59843), (3811, 52871), (4067, 49543), (5047, 39923), (7553, 26677), (8549, 23569), (9373, 21497)]