20757178

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{337}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 35433216

約数和(自身を除く): 14676038

約数列:

[1, 2, 13, 23, 26, 46, 103, 206, 299, 337, 598, 674, 1339, 2369, 2678, 4381, 4738, 7751, 8762, 15502, 30797, 34711, 61594, 69422, 100763, 201526, 451243, 798353, 902486, 1596706, 10378589, 20757178]

約数ペア:

[(1, 20757178), (2, 10378589), (13, 1596706), (23, 902486), (26, 798353), (46, 451243), (103, 201526), (206, 100763), (299, 69422), (337, 61594), (598, 34711), (674, 30797), (1339, 15502), (2369, 8762), (2678, 7751), (4381, 4738)]