21802209

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{50821}}^1$

素因数の和:50848

約数の個数: 16

約数和(自身を含む): 34152384

約数和(自身を除く): 12350175

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 50821, 152463, 559031, 660673, 1677093, 1982019, 7267403, 21802209]

約数ペア:

[(1, 21802209), (3, 7267403), (11, 1982019), (13, 1677093), (33, 660673), (39, 559031), (143, 152463), (429, 50821)]