21322959

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53441}}^1$

素因数の和:53470

約数の個数: 16

約数和(自身を含む): 34202880

約数和(自身を除く): 12879921

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 53441, 160323, 374087, 1015379, 1122261, 3046137, 7107653, 21322959]

約数ペア:

[(1, 21322959), (3, 7107653), (7, 3046137), (19, 1122261), (21, 1015379), (57, 374087), (133, 160323), (399, 53441)]