20761281

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{383}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 31749120

約数和(自身を除く): 10987839

約数列:

[1, 3, 9, 19, 57, 171, 317, 383, 951, 1149, 2853, 3447, 6023, 7277, 18069, 21831, 54207, 65493, 121411, 364233, 1092699, 2306809, 6920427, 20761281]

約数ペア:

[(1, 20761281), (3, 6920427), (9, 2306809), (19, 1092699), (57, 364233), (171, 121411), (317, 65493), (383, 54207), (951, 21831), (1149, 18069), (2853, 7277), (3447, 6023)]