20545503

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{691}}^1$

素因数の和:775

約数の個数: 32

約数和(自身を含む): 32285952

約数和(自身を除く): 11740449

約数列:

[1, 3, 11, 17, 33, 51, 53, 159, 187, 561, 583, 691, 901, 1749, 2073, 2703, 7601, 9911, 11747, 22803, 29733, 35241, 36623, 109869, 129217, 387651, 402853, 622591, 1208559, 1867773, 6848501, 20545503]

約数ペア:

[(1, 20545503), (3, 6848501), (11, 1867773), (17, 1208559), (33, 622591), (51, 402853), (53, 387651), (159, 129217), (187, 109869), (561, 36623), (583, 35241), (691, 29733), (901, 22803), (1749, 11747), (2073, 9911), (2703, 7601)]