20215347921

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{132126457}}^1$

素因数の和:132126480

約数の個数: 12

約数和(自身を含む): 30917591172

約数和(自身を除く): 10702243251

約数列:

[1, 3, 9, 17, 51, 153, 132126457, 396379371, 1189138113, 2246149769, 6738449307, 20215347921]

約数ペア:

[(1, 20215347921), (3, 6738449307), (9, 2246149769), (17, 1189138113), (51, 396379371), (153, 132126457)]