138780979

素因数分解:

${\mathrm{17}}^2\times {\mathrm{29}}^2\times {\mathrm{571}}^1$

素因数の和:663

約数の個数: 18

約数和(自身を含む): 152951084

約数和(自身を除く): 14170105

約数列:

[1, 17, 29, 289, 493, 571, 841, 8381, 9707, 14297, 16559, 165019, 243049, 281503, 480211, 4785551, 8163587, 138780979]

約数ペア:

[(1, 138780979), (17, 8163587), (29, 4785551), (289, 480211), (493, 281503), (571, 243049), (841, 165019), (8381, 16559), (9707, 14297)]