18980754

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{243343}}^1$

素因数の和:243361

約数の個数: 16

約数和(自身を含む): 40881792

約数和(自身を除く): 21901038

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 243343, 486686, 730029, 1460058, 3163459, 6326918, 9490377, 18980754]

約数ペア:

[(1, 18980754), (2, 9490377), (3, 6326918), (6, 3163459), (13, 1460058), (26, 730029), (39, 486686), (78, 243343)]