20123143389

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{310931}}^1$

素因数の和:311007

約数の個数: 40

約数和(自身を含む): 32506075008

約数和(自身を除く): 12382931619

約数列:

[1, 3, 9, 17, 27, 47, 51, 81, 141, 153, 423, 459, 799, 1269, 1377, 2397, 3807, 7191, 21573, 64719, 310931, 932793, 2798379, 5285827, 8395137, 14613757, 15857481, 25185411, 43841271, 47572443, 131523813, 142717329, 248433869, 394571439, 428151987, 745301607, 1183714317, 2235904821, 6707714463, 20123143389]

約数ペア:

[(1, 20123143389), (3, 6707714463), (9, 2235904821), (17, 1183714317), (27, 745301607), (47, 428151987), (51, 394571439), (81, 248433869), (141, 142717329), (153, 131523813), (423, 47572443), (459, 43841271), (799, 25185411), (1269, 15857481), (1377, 14613757), (2397, 8395137), (3807, 5285827), (7191, 2798379), (21573, 932793), (64719, 310931)]