21084578

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1\times {\mathrm{661}}^1$

素因数の和:1093

約数の個数: 16

約数和(自身を含む): 32530680

約数和(自身を除く): 11446102

約数列:

[1, 2, 41, 82, 389, 661, 778, 1322, 15949, 27101, 31898, 54202, 257129, 514258, 10542289, 21084578]

約数ペア:

[(1, 21084578), (2, 10542289), (41, 514258), (82, 257129), (389, 54202), (661, 31898), (778, 27101), (1322, 15949)]