21378597

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{3461}}^1$

素因数の和:3564

約数の個数: 16

約数和(自身を含む): 29911680

約数和(自身を除く): 8533083

約数列:

[1, 3, 29, 71, 87, 213, 2059, 3461, 6177, 10383, 100369, 245731, 301107, 737193, 7126199, 21378597]

約数ペア:

[(1, 21378597), (3, 7126199), (29, 737193), (71, 301107), (87, 245731), (213, 100369), (2059, 10383), (3461, 6177)]