18990694

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{353}}^1\times {\mathrm{727}}^1$

素因数の和:1119

約数の個数: 16

約数和(自身を含む): 29379168

約数和(自身を除く): 10388474

約数列:

[1, 2, 37, 74, 353, 706, 727, 1454, 13061, 26122, 26899, 53798, 256631, 513262, 9495347, 18990694]

約数ペア:

[(1, 18990694), (2, 9495347), (37, 513262), (74, 256631), (353, 53798), (706, 26899), (727, 26122), (1454, 13061)]