21491613

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{16699}}^1$

素因数の和:16729

約数の個数: 24

約数和(自身を含む): 36472800

約数和(自身を除く): 14981187

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 16699, 50097, 150291, 183689, 217087, 551067, 651261, 1653201, 1953783, 2387957, 7163871, 21491613]

約数ペア:

[(1, 21491613), (3, 7163871), (9, 2387957), (11, 1953783), (13, 1653201), (33, 651261), (39, 551067), (99, 217087), (117, 183689), (143, 150291), (429, 50097), (1287, 16699)]