21005006

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{6323}}^1$

素因数の和:6487

約数の個数: 16

約数和(自身を含む): 34604928

約数和(自身を除く): 13599922

約数列:

[1, 2, 11, 22, 151, 302, 1661, 3322, 6323, 12646, 69553, 139106, 954773, 1909546, 10502503, 21005006]

約数ペア:

[(1, 21005006), (2, 10502503), (11, 1909546), (22, 954773), (151, 139106), (302, 69553), (1661, 12646), (3322, 6323)]