209769903

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{32327}}^1$

素因数の和:32443

約数の個数: 24

約数和(自身を含む): 349659648

約数和(自身を除く): 139889745

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 6489, 32327, 96981, 226289, 290943, 678867, 2036601, 3329681, 9989043, 23307767, 29967129, 69923301, 209769903]

約数ペア:

[(1, 209769903), (3, 69923301), (7, 29967129), (9, 23307767), (21, 9989043), (63, 3329681), (103, 2036601), (309, 678867), (721, 290943), (927, 226289), (2163, 96981), (6489, 32327)]