21710865

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131581}}^1$

素因数の和:131600

約数の個数: 16

約数和(自身を含む): 37895616

約数和(自身を除く): 16184751

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 131581, 394743, 657905, 1447391, 1973715, 4342173, 7236955, 21710865]

約数ペア:

[(1, 21710865), (3, 7236955), (5, 4342173), (11, 1973715), (15, 1447391), (33, 657905), (55, 394743), (165, 131581)]