21408662

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{31391}}^1$

素因数の和:31435

約数の個数: 16

約数和(自身を含む): 36163584

約数和(自身を除く): 14754922

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 31391, 62782, 345301, 690602, 973121, 1946242, 10704331, 21408662]

約数ペア:

[(1, 21408662), (2, 10704331), (11, 1946242), (22, 973121), (31, 690602), (62, 345301), (341, 62782), (682, 31391)]