20865537

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{30109}}^1$

素因数の和:30133

約数の個数: 24

約数和(自身を含む): 37577280

約数和(自身を除く): 16711743

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 30109, 90327, 210763, 270981, 331199, 632289, 993597, 1896867, 2318393, 2980791, 6955179, 20865537]

約数ペア:

[(1, 20865537), (3, 6955179), (7, 2980791), (9, 2318393), (11, 1896867), (21, 993597), (33, 632289), (63, 331199), (77, 270981), (99, 210763), (231, 90327), (693, 30109)]