21397107

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{5851}}^1$

素因数の和:5930

約数の個数: 16

約数和(自身を含む): 30336768

約数和(自身を除く): 8939661

約数列:

[1, 3, 23, 53, 69, 159, 1219, 3657, 5851, 17553, 134573, 310103, 403719, 930309, 7132369, 21397107]

約数ペア:

[(1, 21397107), (3, 7132369), (23, 930309), (53, 403719), (69, 310103), (159, 134573), (1219, 17553), (3657, 5851)]