28785897

素因数分解:

$3^2\times 7^1\times {\mathrm{383}}^1\times {\mathrm{1193}}^1$

素因数の和:1589

約数の個数: 24

約数和(自身を含む): 47683584

約数和(自身を除く): 18897687

約数列:

[1, 3, 7, 9, 21, 63, 383, 1149, 1193, 2681, 3447, 3579, 8043, 8351, 10737, 24129, 25053, 75159, 456919, 1370757, 3198433, 4112271, 9595299, 28785897]

約数ペア:

[(1, 28785897), (3, 9595299), (7, 4112271), (9, 3198433), (21, 1370757), (63, 456919), (383, 75159), (1149, 25053), (1193, 24129), (2681, 10737), (3447, 8351), (3579, 8043)]