21383445

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61981}}^1$

素因数の和:62012

約数の個数: 16

約数和(自身を含む): 35701632

約数和(自身を除く): 14318187

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 61981, 185943, 309905, 929715, 1425563, 4276689, 7127815, 21383445]

約数ペア:

[(1, 21383445), (3, 7127815), (5, 4276689), (15, 1425563), (23, 929715), (69, 309905), (115, 185943), (345, 61981)]