21189025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5927}}^1$

素因数の和:5961

約数の個数: 24

約数和(自身を含む): 30873024

約数和(自身を除く): 9683999

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 3575, 5927, 29635, 65197, 77051, 148175, 325985, 385255, 847561, 1629925, 1926275, 4237805, 21189025]

約数ペア:

[(1, 21189025), (5, 4237805), (11, 1926275), (13, 1629925), (25, 847561), (55, 385255), (65, 325985), (143, 148175), (275, 77051), (325, 65197), (715, 29635), (3575, 5927)]