21369561

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{1187}}^1$

素因数の和:1560

約数の個数: 16

約数和(自身を含む): 30279744

約数和(自身を除く): 8910183

約数列:

[1, 3, 17, 51, 353, 1059, 1187, 3561, 6001, 18003, 20179, 60537, 419011, 1257033, 7123187, 21369561]

約数ペア:

[(1, 21369561), (3, 7123187), (17, 1257033), (51, 419011), (353, 60537), (1059, 20179), (1187, 18003), (3561, 6001)]