19114975

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:192

約数の個数: 36

約数和(自身を含む): 26717040

約数和(自身を除く): 7602065

約数列:

[1, 5, 11, 25, 55, 71, 89, 121, 275, 355, 445, 605, 781, 979, 1775, 2225, 3025, 3905, 4895, 6319, 8591, 10769, 19525, 24475, 31595, 42955, 53845, 69509, 157975, 214775, 269225, 347545, 764599, 1737725, 3822995, 19114975]

約数ペア:

[(1, 19114975), (5, 3822995), (11, 1737725), (25, 764599), (55, 347545), (71, 269225), (89, 214775), (121, 157975), (275, 69509), (355, 53845), (445, 42955), (605, 31595), (781, 24475), (979, 19525), (1775, 10769), (2225, 8591), (3025, 6319), (3905, 4895)]