20653875

素因数分解:

$3^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{1669}}^1$

素因数の和:1701

約数の個数: 48

約数和(自身を含む): 40641120

約数和(自身を除く): 19987245

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 125, 165, 225, 275, 375, 495, 825, 1125, 1375, 1669, 2475, 4125, 5007, 8345, 12375, 15021, 18359, 25035, 41725, 55077, 75105, 91795, 125175, 165231, 208625, 275385, 375525, 458975, 625875, 826155, 1376925, 1877625, 2294875, 4130775, 6884625, 20653875]

約数ペア:

[(1, 20653875), (3, 6884625), (5, 4130775), (9, 2294875), (11, 1877625), (15, 1376925), (25, 826155), (33, 625875), (45, 458975), (55, 375525), (75, 275385), (99, 208625), (125, 165231), (165, 125175), (225, 91795), (275, 75105), (375, 55077), (495, 41725), (825, 25035), (1125, 18359), (1375, 15021), (1669, 12375), (2475, 8345), (4125, 5007)]