16991918

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1\times {\mathrm{643}}^1$

素因数の和:899

約数の個数: 16

約数和(自身を含む): 26020176

約数和(自身を除く): 9028258

約数列:

[1, 2, 73, 146, 181, 362, 643, 1286, 13213, 26426, 46939, 93878, 116383, 232766, 8495959, 16991918]

約数ペア:

[(1, 16991918), (2, 8495959), (73, 232766), (146, 116383), (181, 93878), (362, 46939), (643, 26426), (1286, 13213)]