20438926

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{641}}^1$

素因数の和:899

約数の個数: 16

約数和(自身を含む): 31201200

約数和(自身を除く): 10762274

約数列:

[1, 2, 107, 149, 214, 298, 641, 1282, 15943, 31886, 68587, 95509, 137174, 191018, 10219463, 20438926]

約数ペア:

[(1, 20438926), (2, 10219463), (107, 191018), (149, 137174), (214, 95509), (298, 68587), (641, 31886), (1282, 15943)]