21320368

素因数分解:

$2^4\times {\mathrm{401}}^1\times {\mathrm{3323}}^1$

素因数の和:3732

約数の個数: 20

約数和(自身を含む): 41423688

約数和(自身を除く): 20103320

約数列:

[1, 2, 4, 8, 16, 401, 802, 1604, 3208, 3323, 6416, 6646, 13292, 26584, 53168, 1332523, 2665046, 5330092, 10660184, 21320368]

約数ペア:

[(1, 21320368), (2, 10660184), (4, 5330092), (8, 2665046), (16, 1332523), (401, 53168), (802, 26584), (1604, 13292), (3208, 6646), (3323, 6416)]