21680628

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{78553}}^1$

素因数の和:78583

約数の個数: 24

約数和(自身を含む): 52788288

約数和(自身を除く): 31107660

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 276, 78553, 157106, 235659, 314212, 471318, 942636, 1806719, 3613438, 5420157, 7226876, 10840314, 21680628]

約数ペア:

[(1, 21680628), (2, 10840314), (3, 7226876), (4, 5420157), (6, 3613438), (12, 1806719), (23, 942636), (46, 471318), (69, 314212), (92, 235659), (138, 157106), (276, 78553)]