18801994

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{11047}}^1$

素因数の和:11109

約数の個数: 16

約数和(自身を含む): 30227328

約数和(自身を除く): 11425334

約数列:

[1, 2, 23, 37, 46, 74, 851, 1702, 11047, 22094, 254081, 408739, 508162, 817478, 9400997, 18801994]

約数ペア:

[(1, 18801994), (2, 9400997), (23, 817478), (37, 508162), (46, 408739), (74, 254081), (851, 22094), (1702, 11047)]