20931502

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{547}}^1$

素因数の和:640

約数の個数: 24

約数和(自身を含む): 33823656

約数和(自身を除く): 12892154

約数列:

[1, 2, 19, 38, 53, 106, 361, 547, 722, 1007, 1094, 2014, 10393, 19133, 20786, 28991, 38266, 57982, 197467, 394934, 550829, 1101658, 10465751, 20931502]

約数ペア:

[(1, 20931502), (2, 10465751), (19, 1101658), (38, 550829), (53, 394934), (106, 197467), (361, 57982), (547, 38266), (722, 28991), (1007, 20786), (1094, 19133), (2014, 10393)]