21968997

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{1997}}^1$

素因数の和:2212

約数の個数: 16

約数和(自身を含む): 31008960

約数和(自身を除く): 9039963

約数列:

[1, 3, 19, 57, 193, 579, 1997, 3667, 5991, 11001, 37943, 113829, 385421, 1156263, 7322999, 21968997]

約数ペア:

[(1, 21968997), (3, 7322999), (19, 1156263), (57, 385421), (193, 113829), (579, 37943), (1997, 11001), (3667, 5991)]