21779025

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{5479}}^1$

素因数の和:5545

約数の個数: 24

約数和(自身を含む): 36694080

約数和(自身を除く): 14915055

約数列:

[1, 3, 5, 15, 25, 53, 75, 159, 265, 795, 1325, 3975, 5479, 16437, 27395, 82185, 136975, 290387, 410925, 871161, 1451935, 4355805, 7259675, 21779025]

約数ペア:

[(1, 21779025), (3, 7259675), (5, 4355805), (15, 1451935), (25, 871161), (53, 410925), (75, 290387), (159, 136975), (265, 82185), (795, 27395), (1325, 16437), (3975, 5479)]