21588427

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 5990453

約数列:

[1, 7, 19, 37, 41, 107, 133, 259, 287, 703, 749, 779, 1517, 2033, 3959, 4387, 4921, 5453, 10619, 14231, 27713, 28823, 30709, 75221, 83353, 162319, 201761, 526547, 583471, 1136233, 3084061, 21588427]

約数ペア:

[(1, 21588427), (7, 3084061), (19, 1136233), (37, 583471), (41, 526547), (107, 201761), (133, 162319), (259, 83353), (287, 75221), (703, 30709), (749, 28823), (779, 27713), (1517, 14231), (2033, 10619), (3959, 5453), (4387, 4921)]