21538908

素因数分解:

$2^2\times 3^2\times {\mathrm{598303}}^1$

素因数の和:598313

約数の個数: 18

約数和(自身を含む): 54445664

約数和(自身を除く): 32906756

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 598303, 1196606, 1794909, 2393212, 3589818, 5384727, 7179636, 10769454, 21538908]

約数ペア:

[(1, 21538908), (2, 10769454), (3, 7179636), (4, 5384727), (6, 3589818), (9, 2393212), (12, 1794909), (18, 1196606), (36, 598303)]