21787016607

素因数分解:

$3^3\times {\mathrm{419}}^1\times {\mathrm{1925839}}^1$

素因数の和:1926267

約数の個数: 16

約数和(自身を含む): 32354112000

約数和(自身を除く): 10567095393

約数列:

[1, 3, 9, 27, 419, 1257, 3771, 11313, 1925839, 5777517, 17332551, 51997653, 806926541, 2420779623, 7262338869, 21787016607]

約数ペア:

[(1, 21787016607), (3, 7262338869), (9, 2420779623), (27, 806926541), (419, 51997653), (1257, 17332551), (3771, 5777517), (11313, 1925839)]