21789939

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{307}}^1\times {\mathrm{401}}^1$

素因数の和:770

約数の個数: 16

約数和(自身を含む): 29715840

約数和(自身を除く): 7925901

約数列:

[1, 3, 59, 177, 307, 401, 921, 1203, 18113, 23659, 54339, 70977, 123107, 369321, 7263313, 21789939]

約数ペア:

[(1, 21789939), (3, 7263313), (59, 369321), (177, 123107), (307, 70977), (401, 54339), (921, 23659), (1203, 18113)]