18980522

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{4987}}^1$

素因数の和:5173

約数の個数: 16

約数和(自身を含む): 31244832

約数和(自身を除く): 12264310

約数列:

[1, 2, 11, 22, 173, 346, 1903, 3806, 4987, 9974, 54857, 109714, 862751, 1725502, 9490261, 18980522]

約数ペア:

[(1, 18980522), (2, 9490261), (11, 1725502), (22, 862751), (173, 109714), (346, 54857), (1903, 9974), (3806, 4987)]