19887769

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{277}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 22337856

約数和(自身を除く): 2450087

約数列:

[1, 11, 61, 107, 277, 671, 1177, 3047, 6527, 16897, 29639, 71797, 185867, 326029, 1807979, 19887769]

約数ペア:

[(1, 19887769), (11, 1807979), (61, 326029), (107, 185867), (277, 71797), (671, 29639), (1177, 16897), (3047, 6527)]