21480545

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{1307}}^1$

素因数の和:1504

約数の個数: 16

約数和(自身を含む): 27311040

約数和(自身を除く): 5830495

約数列:

[1, 5, 19, 95, 173, 865, 1307, 3287, 6535, 16435, 24833, 124165, 226111, 1130555, 4296109, 21480545]

約数ペア:

[(1, 21480545), (5, 4296109), (19, 1130555), (95, 226111), (173, 124165), (865, 24833), (1307, 16435), (3287, 6535)]