21435752

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2903}}^1$

素因数の和:2993

約数の個数: 32

約数和(自身を含む): 43908480

約数和(自身を除く): 22472728

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 142, 284, 568, 923, 1846, 2903, 3692, 5806, 7384, 11612, 23224, 37739, 75478, 150956, 206113, 301912, 412226, 824452, 1648904, 2679469, 5358938, 10717876, 21435752]

約数ペア:

[(1, 21435752), (2, 10717876), (4, 5358938), (8, 2679469), (13, 1648904), (26, 824452), (52, 412226), (71, 301912), (104, 206113), (142, 150956), (284, 75478), (568, 37739), (923, 23224), (1846, 11612), (2903, 7384), (3692, 5806)]