19438918

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1\times {\mathrm{911}}^1$

素因数の和:1187

約数の個数: 16

約数和(自身を含む): 29942784

約数和(自身を除く): 10503866

約数列:

[1, 2, 47, 94, 227, 454, 911, 1822, 10669, 21338, 42817, 85634, 206797, 413594, 9719459, 19438918]

約数ペア:

[(1, 19438918), (2, 9719459), (47, 413594), (94, 206797), (227, 85634), (454, 42817), (911, 21338), (1822, 10669)]