18139478

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{17749}}^1$

素因数の和:17831

約数の個数: 16

約数和(自身を含む): 31524000

約数和(自身を除く): 13384522

約数列:

[1, 2, 7, 14, 73, 146, 511, 1022, 17749, 35498, 124243, 248486, 1295677, 2591354, 9069739, 18139478]

約数ペア:

[(1, 18139478), (2, 9069739), (7, 2591354), (14, 1295677), (73, 248486), (146, 124243), (511, 35498), (1022, 17749)]