19852217

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{743}}^1$

素因数の和:1108

約数の個数: 16

約数和(自身を含む): 24855552

約数和(自身を除く): 5003335

約数列:

[1, 7, 11, 77, 347, 743, 2429, 3817, 5201, 8173, 26719, 57211, 257821, 1804747, 2836031, 19852217]

約数ペア:

[(1, 19852217), (7, 2836031), (11, 1804747), (77, 257821), (347, 57211), (743, 26719), (2429, 8173), (3817, 5201)]