213888423

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1\times {\mathrm{859}}^1$

素因数の和:1107

約数の個数: 32

約数和(自身を含む): 332881920

約数和(自身を除く): 118993497

約数列:

[1, 3, 7, 21, 71, 167, 213, 497, 501, 859, 1169, 1491, 2577, 3507, 6013, 11857, 18039, 35571, 60989, 82999, 143453, 182967, 248997, 426923, 430359, 1004171, 1280769, 3012513, 10185163, 30555489, 71296141, 213888423]

約数ペア:

[(1, 213888423), (3, 71296141), (7, 30555489), (21, 10185163), (71, 3012513), (167, 1280769), (213, 1004171), (497, 430359), (501, 426923), (859, 248997), (1169, 182967), (1491, 143453), (2577, 82999), (3507, 60989), (6013, 35571), (11857, 18039)]