20687994

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{16657}}^1$

素因数の和:16691

約数の個数: 32

約数和(自身を含む): 47975040

約数和(自身を除く): 27287046

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 138, 207, 414, 621, 1242, 16657, 33314, 49971, 99942, 149913, 299826, 383111, 449739, 766222, 899478, 1149333, 2298666, 3447999, 6895998, 10343997, 20687994]

約数ペア:

[(1, 20687994), (2, 10343997), (3, 6895998), (6, 3447999), (9, 2298666), (18, 1149333), (23, 899478), (27, 766222), (46, 449739), (54, 383111), (69, 299826), (138, 149913), (207, 99942), (414, 49971), (621, 33314), (1242, 16657)]