19913215

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{15377}}^1$

素因数の和:15426

約数の個数: 16

約数和(自身を含む): 28049472

約数和(自身を除く): 8136257

約数列:

[1, 5, 7, 35, 37, 185, 259, 1295, 15377, 76885, 107639, 538195, 568949, 2844745, 3982643, 19913215]

約数ペア:

[(1, 19913215), (5, 3982643), (7, 2844745), (35, 568949), (37, 538195), (185, 107639), (259, 76885), (1295, 15377)]