291208981

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{283}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 357431040

約数和(自身を除く): 66222059

約数列:

[1, 7, 29, 37, 137, 203, 259, 283, 959, 1073, 1981, 3973, 5069, 7511, 8207, 10471, 27811, 35483, 38771, 57449, 73297, 147001, 271397, 303659, 1029007, 1124359, 1434527, 2125613, 7870513, 10041689, 41601283, 291208981]

約数ペア:

[(1, 291208981), (7, 41601283), (29, 10041689), (37, 7870513), (137, 2125613), (203, 1434527), (259, 1124359), (283, 1029007), (959, 303659), (1073, 271397), (1981, 147001), (3973, 73297), (5069, 57449), (7511, 38771), (8207, 35483), (10471, 27811)]