21023105530

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42904297}}^1$

素因数の和:42904318

約数の個数: 24

約数和(自身を含む): 44019809748

約数和(自身を除く): 22996704218

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42904297, 85808594, 214521485, 300330079, 429042970, 600660158, 1501650395, 2102310553, 3003300790, 4204621106, 10511552765, 21023105530]

約数ペア:

[(1, 21023105530), (2, 10511552765), (5, 4204621106), (7, 3003300790), (10, 2102310553), (14, 1501650395), (35, 600660158), (49, 429042970), (70, 300330079), (98, 214521485), (245, 85808594), (490, 42904297)]