21955197

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{12553}}^1$

素因数の和:12620

約数の個数: 16

約数和(自身を含む): 32539968

約数和(自身を除く): 10584771

約数列:

[1, 3, 11, 33, 53, 159, 583, 1749, 12553, 37659, 138083, 414249, 665309, 1995927, 7318399, 21955197]

約数ペア:

[(1, 21955197), (3, 7318399), (11, 1995927), (33, 665309), (53, 414249), (159, 138083), (583, 37659), (1749, 12553)]