21789616

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{19181}}^1$

素因数の和:19260

約数の個数: 20

約数和(自身を含む): 42814224

約数和(自身を除く): 21024608

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 19181, 38362, 76724, 153448, 306896, 1361851, 2723702, 5447404, 10894808, 21789616]

約数ペア:

[(1, 21789616), (2, 10894808), (4, 5447404), (8, 2723702), (16, 1361851), (71, 306896), (142, 153448), (284, 76724), (568, 38362), (1136, 19181)]