21693620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83437}}^1$

素因数の和:83459

約数の個数: 24

約数和(自身を含む): 49061544

約数和(自身を除く): 27367924

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 83437, 166874, 333748, 417185, 834370, 1084681, 1668740, 2169362, 4338724, 5423405, 10846810, 21693620]

約数ペア:

[(1, 21693620), (2, 10846810), (4, 5423405), (5, 4338724), (10, 2169362), (13, 1668740), (20, 1084681), (26, 834370), (52, 417185), (65, 333748), (130, 166874), (260, 83437)]