21770265

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131941}}^1$

素因数の和:131960

約数の個数: 16

約数和(自身を含む): 37999296

約数和(自身を除く): 16229031

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 131941, 395823, 659705, 1451351, 1979115, 4354053, 7256755, 21770265]

約数ペア:

[(1, 21770265), (3, 7256755), (5, 4354053), (11, 1979115), (15, 1451351), (33, 659705), (55, 395823), (165, 131941)]