20531907

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{947}}^1$

素因数の和:1040

約数の個数: 32

約数和(自身を含む): 33672960

約数和(自身を除く): 13141053

約数列:

[1, 3, 9, 11, 27, 33, 73, 99, 219, 297, 657, 803, 947, 1971, 2409, 2841, 7227, 8523, 10417, 21681, 25569, 31251, 69131, 93753, 207393, 281259, 622179, 760441, 1866537, 2281323, 6843969, 20531907]

約数ペア:

[(1, 20531907), (3, 6843969), (9, 2281323), (11, 1866537), (27, 760441), (33, 622179), (73, 281259), (99, 207393), (219, 93753), (297, 69131), (657, 31251), (803, 25569), (947, 21681), (1971, 10417), (2409, 8523), (2841, 7227)]