20820962

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1\times {\mathrm{641}}^1$

素因数の和:901

約数の個数: 16

約数和(自身を含む): 31779000

約数和(自身を除く): 10958038

約数列:

[1, 2, 109, 149, 218, 298, 641, 1282, 16241, 32482, 69869, 95509, 139738, 191018, 10410481, 20820962]

約数ペア:

[(1, 20820962), (2, 10410481), (109, 191018), (149, 139738), (218, 95509), (298, 69869), (641, 32482), (1282, 16241)]