18795921

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{787}}^1$

素因数の和:1228

約数の個数: 16

約数和(自身を含む): 26476800

約数和(自身を除く): 7680879

約数列:

[1, 3, 19, 57, 419, 787, 1257, 2361, 7961, 14953, 23883, 44859, 329753, 989259, 6265307, 18795921]

約数ペア:

[(1, 18795921), (3, 6265307), (19, 989259), (57, 329753), (419, 44859), (787, 23883), (1257, 14953), (2361, 7961)]