21187324

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{41}}^2\times {\mathrm{137}}^1$

素因数の和:246

約数の個数: 36

約数和(自身を含む): 39946032

約数和(自身を除く): 18758708

約数列:

[1, 2, 4, 23, 41, 46, 82, 92, 137, 164, 274, 548, 943, 1681, 1886, 3151, 3362, 3772, 5617, 6302, 6724, 11234, 12604, 22468, 38663, 77326, 129191, 154652, 230297, 258382, 460594, 516764, 921188, 5296831, 10593662, 21187324]

約数ペア:

[(1, 21187324), (2, 10593662), (4, 5296831), (23, 921188), (41, 516764), (46, 460594), (82, 258382), (92, 230297), (137, 154652), (164, 129191), (274, 77326), (548, 38663), (943, 22468), (1681, 12604), (1886, 11234), (3151, 6724), (3362, 6302), (3772, 5617)]