21489275727

素因数分解:

$3^3\times {\mathrm{191}}^1\times {\mathrm{593}}^1\times {\mathrm{7027}}^1$

素因数の和:7820

約数の個数: 32

約数和(自身を含む): 32061173760

約数和(自身を除く): 10571898033

約数列:

[1, 3, 9, 27, 191, 573, 593, 1719, 1779, 5157, 5337, 7027, 16011, 21081, 63243, 113263, 189729, 339789, 1019367, 1342157, 3058101, 4026471, 4167011, 12079413, 12501033, 36238239, 37503099, 112509297, 795899101, 2387697303, 7163091909, 21489275727]

約数ペア:

[(1, 21489275727), (3, 7163091909), (9, 2387697303), (27, 795899101), (191, 112509297), (573, 37503099), (593, 36238239), (1719, 12501033), (1779, 12079413), (5157, 4167011), (5337, 4026471), (7027, 3058101), (16011, 1342157), (21081, 1019367), (63243, 339789), (113263, 189729)]