21718611

素因数分解:

$3^5\times {\mathrm{139}}^1\times {\mathrm{643}}^1$

素因数の和:797

約数の個数: 24

約数和(自身を含む): 32818240

約数和(自身を除く): 11099629

約数列:

[1, 3, 9, 27, 81, 139, 243, 417, 643, 1251, 1929, 3753, 5787, 11259, 17361, 33777, 52083, 89377, 156249, 268131, 804393, 2413179, 7239537, 21718611]

約数ペア:

[(1, 21718611), (3, 7239537), (9, 2413179), (27, 804393), (81, 268131), (139, 156249), (243, 89377), (417, 52083), (643, 33777), (1251, 17361), (1929, 11259), (3753, 5787)]