21357206

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{179}}^1\times {\mathrm{353}}^1$

素因数の和:560

約数の個数: 24

約数和(自身を含む): 34982280

約数和(自身を除く): 13625074

約数列:

[1, 2, 13, 26, 169, 179, 338, 353, 358, 706, 2327, 4589, 4654, 9178, 30251, 59657, 60502, 63187, 119314, 126374, 821431, 1642862, 10678603, 21357206]

約数ペア:

[(1, 21357206), (2, 10678603), (13, 1642862), (26, 821431), (169, 126374), (179, 119314), (338, 63187), (353, 60502), (358, 59657), (706, 30251), (2327, 9178), (4589, 4654)]