19845956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{379}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 20373244

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 53, 76, 106, 212, 247, 379, 494, 689, 758, 988, 1007, 1378, 1516, 2014, 2756, 4028, 4927, 7201, 9854, 13091, 14402, 19708, 20087, 26182, 28804, 40174, 52364, 80348, 93613, 187226, 261131, 374452, 381653, 522262, 763306, 1044524, 1526612, 4961489, 9922978, 19845956]

約数ペア:

[(1, 19845956), (2, 9922978), (4, 4961489), (13, 1526612), (19, 1044524), (26, 763306), (38, 522262), (52, 381653), (53, 374452), (76, 261131), (106, 187226), (212, 93613), (247, 80348), (379, 52364), (494, 40174), (689, 28804), (758, 26182), (988, 20087), (1007, 19708), (1378, 14402), (1516, 13091), (2014, 9854), (2756, 7201), (4028, 4927)]