19715255

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1289}}^1$

素因数の和:1343

約数の個数: 32

約数和(自身を含む): 29721600

約数和(自身を除く): 10006345

約数列:

[1, 5, 7, 19, 23, 35, 95, 115, 133, 161, 437, 665, 805, 1289, 2185, 3059, 6445, 9023, 15295, 24491, 29647, 45115, 122455, 148235, 171437, 207529, 563293, 857185, 1037645, 2816465, 3943051, 19715255]

約数ペア:

[(1, 19715255), (5, 3943051), (7, 2816465), (19, 1037645), (23, 857185), (35, 563293), (95, 207529), (115, 171437), (133, 148235), (161, 122455), (437, 45115), (665, 29647), (805, 24491), (1289, 15295), (2185, 9023), (3059, 6445)]