20542775

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{6791}}^1$

素因数の和:6823

約数の個数: 18

約数和(自身を含む): 28003416

約数和(自身を除く): 7460641

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 6791, 33955, 74701, 169775, 373505, 821711, 1867525, 4108555, 20542775]

約数ペア:

[(1, 20542775), (5, 4108555), (11, 1867525), (25, 821711), (55, 373505), (121, 169775), (275, 74701), (605, 33955), (3025, 6791)]