20495918

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{1777}}^1$

素因数の和:1931

約数の個数: 16

約数和(自身を含む): 31577280

約数和(自身を除く): 11081362

約数列:

[1, 2, 73, 79, 146, 158, 1777, 3554, 5767, 11534, 129721, 140383, 259442, 280766, 10247959, 20495918]

約数ペア:

[(1, 20495918), (2, 10247959), (73, 280766), (79, 259442), (146, 140383), (158, 129721), (1777, 11534), (3554, 5767)]