20815506

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{367}}^1$

素因数の和:535

約数の個数: 48

約数和(自身を含む): 47533824

約数和(自身を除く): 26718318

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 137, 138, 207, 274, 367, 411, 414, 734, 822, 1101, 1233, 2202, 2466, 3151, 3303, 6302, 6606, 8441, 9453, 16882, 18906, 25323, 28359, 50279, 50646, 56718, 75969, 100558, 150837, 151938, 301674, 452511, 905022, 1156417, 2312834, 3469251, 6938502, 10407753, 20815506]

約数ペア:

[(1, 20815506), (2, 10407753), (3, 6938502), (6, 3469251), (9, 2312834), (18, 1156417), (23, 905022), (46, 452511), (69, 301674), (137, 151938), (138, 150837), (207, 100558), (274, 75969), (367, 56718), (411, 50646), (414, 50279), (734, 28359), (822, 25323), (1101, 18906), (1233, 16882), (2202, 9453), (2466, 8441), (3151, 6606), (3303, 6302)]