21018838

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1\times {\mathrm{691}}^1$

素因数の和:987

約数の個数: 16

約数和(自身を含む): 32186304

約数和(自身を除く): 11167466

約数列:

[1, 2, 67, 134, 227, 454, 691, 1382, 15209, 30418, 46297, 92594, 156857, 313714, 10509419, 21018838]

約数ペア:

[(1, 21018838), (2, 10509419), (67, 313714), (134, 156857), (227, 92594), (454, 46297), (691, 30418), (1382, 15209)]