21521206

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{32707}}^1$

素因数の和:32763

約数の個数: 16

約数和(自身を含む): 37679616

約数和(自身を除く): 16158410

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 32707, 65414, 228949, 457898, 1537229, 3074458, 10760603, 21521206]

約数ペア:

[(1, 21521206), (2, 10760603), (7, 3074458), (14, 1537229), (47, 457898), (94, 228949), (329, 65414), (658, 32707)]