21701656

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{159571}}^1$

素因数の和:159594

約数の個数: 16

約数和(自身を含む): 43084440

約数和(自身を除く): 21382784

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 159571, 319142, 638284, 1276568, 2712707, 5425414, 10850828, 21701656]

約数ペア:

[(1, 21701656), (2, 10850828), (4, 5425414), (8, 2712707), (17, 1276568), (34, 638284), (68, 319142), (136, 159571)]