19919414

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{1663}}^1$

素因数の和:1831

約数の個数: 16

約数和(自身を含む): 30730752

約数和(自身を除く): 10811338

約数列:

[1, 2, 53, 106, 113, 226, 1663, 3326, 5989, 11978, 88139, 176278, 187919, 375838, 9959707, 19919414]

約数ペア:

[(1, 19919414), (2, 9959707), (53, 375838), (106, 187919), (113, 176278), (226, 88139), (1663, 11978), (3326, 5989)]