20655213

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{3511}}^1$

素因数の和:3604

約数の個数: 16

約数和(自身を含む): 28826496

約数和(自身を除く): 8171283

約数列:

[1, 3, 37, 53, 111, 159, 1961, 3511, 5883, 10533, 129907, 186083, 389721, 558249, 6885071, 20655213]

約数ペア:

[(1, 20655213), (3, 6885071), (37, 558249), (53, 389721), (111, 186083), (159, 129907), (1961, 10533), (3511, 5883)]