19940775

素因数分解:

$3^1\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2741}}^1$

素因数の和:2851

約数の個数: 24

約数和(自身を含む): 33320784

約数和(自身を除く): 13380009

約数列:

[1, 3, 5, 15, 25, 75, 97, 291, 485, 1455, 2425, 2741, 7275, 8223, 13705, 41115, 68525, 205575, 265877, 797631, 1329385, 3988155, 6646925, 19940775]

約数ペア:

[(1, 19940775), (3, 6646925), (5, 3988155), (15, 1329385), (25, 797631), (75, 265877), (97, 205575), (291, 68525), (485, 41115), (1455, 13705), (2425, 8223), (2741, 7275)]