21297893757

素因数分解:

$3^1\times 7^2\times {\mathrm{313}}^1\times {\mathrm{462887}}^1$

素因数の和:463217

約数の個数: 24

約数和(自身を含む): 33139077696

約数和(自身を除く): 11841183939

約数列:

[1, 3, 7, 21, 49, 147, 313, 939, 2191, 6573, 15337, 46011, 462887, 1388661, 3240209, 9720627, 22681463, 68044389, 144883631, 434650893, 1014185417, 3042556251, 7099297919, 21297893757]

約数ペア:

[(1, 21297893757), (3, 7099297919), (7, 3042556251), (21, 1014185417), (49, 434650893), (147, 144883631), (313, 68044389), (939, 22681463), (2191, 9720627), (6573, 3240209), (15337, 1388661), (46011, 462887)]