19403551

素因数分解:

${\mathrm{31}}^2\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:454

約数の個数: 12

約数和(自身を含む): 20439912

約数和(自身を除く): 1036361

約数列:

[1, 31, 61, 331, 961, 1891, 10261, 20191, 58621, 318091, 625921, 19403551]

約数ペア:

[(1, 19403551), (31, 625921), (61, 318091), (331, 58621), (961, 20191), (1891, 10261)]