21433881

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53719}}^1$

素因数の和:53748

約数の個数: 16

約数和(自身を含む): 34380800

約数和(自身を除く): 12946919

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 53719, 161157, 376033, 1020661, 1128099, 3061983, 7144627, 21433881]

約数ペア:

[(1, 21433881), (3, 7144627), (7, 3061983), (19, 1128099), (21, 1020661), (57, 376033), (133, 161157), (399, 53719)]