2009491253

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{258389}}^1$

素因数の和:258508

約数の個数: 16

約数和(自身を含む): 2530154880

約数和(自身を除く): 520663627

約数列:

[1, 7, 11, 77, 101, 707, 1111, 7777, 258389, 1808723, 2842279, 19895953, 26097289, 182681023, 287070179, 2009491253]

約数ペア:

[(1, 2009491253), (7, 287070179), (11, 182681023), (77, 26097289), (101, 19895953), (707, 2842279), (1111, 1808723), (7777, 258389)]