27191810

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{6781}}^1$

素因数の和:7189

約数の個数: 16

約数和(自身を含む): 49074552

約数和(自身を除く): 21882742

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 6781, 13562, 33905, 67810, 2719181, 5438362, 13595905, 27191810]

約数ペア:

[(1, 27191810), (2, 13595905), (5, 5438362), (10, 2719181), (401, 67810), (802, 33905), (2005, 13562), (4010, 6781)]