19928854

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{12409}}^1$

素因数の和:12495

約数の個数: 16

約数和(自身を含む): 33060240

約数和(自身を除く): 13131386

約数列:

[1, 2, 11, 22, 73, 146, 803, 1606, 12409, 24818, 136499, 272998, 905857, 1811714, 9964427, 19928854]

約数ペア:

[(1, 19928854), (2, 9964427), (11, 1811714), (22, 905857), (73, 272998), (146, 136499), (803, 24818), (1606, 12409)]